40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...
40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...
40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...
40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...
40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...
40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 471.100 - Applicability; description of the powder metals subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... powder metals subcategory. 471.100 Section 471.100 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Metals Powders Subcategory § 471.100 Applicability; description of the powder metals...
40 CFR 471.100 - Applicability; description of the powder metals subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... powder metals subcategory. 471.100 Section 471.100 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Metals Powders Subcategory § 471.100 Applicability; description of the powder metals...
40 CFR 471.40 - Applicability; description of the precious metals forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... precious metals forming subcategory. 471.40 Section 471.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Precious Metals Forming Subcategory § 471.40 Applicability; description of the...
40 CFR 471.50 - Applicability; description of the refractory metals forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... refractory metals forming subcategory. 471.50 Section 471.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Refractory Metals Forming Subcategory § 471.50 Applicability; description of the...
40 CFR 421.260 - Applicability: Description of the secondary precious metals subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... secondary precious metals subcategory. 421.260 Section 421.260 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Secondary Precious Metals Subcategory § 421.260 Applicability: Description of the secondary...
40 CFR 421.250 - Applicability: Description of the primary precious metals and mercury subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... primary precious metals and mercury subcategory. 421.250 Section 421.250 Protection of Environment... POINT SOURCE CATEGORY Primary Precious Metals and Mercury Subcategory § 421.250 Applicability: Description of the primary precious metals and mercury subcategory. The provisions of this subpart are...
40 CFR 421.250 - Applicability: Description of the primary precious metals and mercury subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary precious metals and mercury subcategory. 421.250 Section 421.250 Protection of Environment... POINT SOURCE CATEGORY Primary Precious Metals and Mercury Subcategory § 421.250 Applicability: Description of the primary precious metals and mercury subcategory. The provisions of this subpart are...
40 CFR 421.250 - Applicability: Description of the primary precious metals and mercury subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... primary precious metals and mercury subcategory. 421.250 Section 421.250 Protection of Environment... POINT SOURCE CATEGORY Primary Precious Metals and Mercury Subcategory § 421.250 Applicability: Description of the primary precious metals and mercury subcategory. The provisions of this subpart are...
40 CFR 421.250 - Applicability: Description of the primary precious metals and mercury subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... primary precious metals and mercury subcategory. 421.250 Section 421.250 Protection of Environment... POINT SOURCE CATEGORY Primary Precious Metals and Mercury Subcategory § 421.250 Applicability: Description of the primary precious metals and mercury subcategory. The provisions of this subpart are...
40 CFR 413.10 - Applicability: Description of the electroplating of common metals subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... electroplating of common metals subcategory. 413.10 Section 413.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ELECTROPLATING POINT SOURCE CATEGORY Electroplating of Common Metals Subcategory § 413.10 Applicability: Description of the electroplating of common...
Ellis, Timothy W.; Schmidt, Frederick A.
1995-08-01
Method of treating rare earth metal-bearing scrap, waste or other material (e.g. Nd--Fe--B or Dy--Tb--Fe scrap) to recover the rare earth metal comprising melting the rare earth metal-bearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted material and melted extractant at a temperature and for a time effective to extract the rare earth from the melted material into the melted extractant. The rare earth metal is separated from the extractant metal by vacuum sublimation or distillation.
Ellis, T.W.; Schmidt, F.A.
1995-08-01
A method is described for treating rare earth metal-bearing scrap, waste or other material (e.g. Nd--Fe--B or Dy--Tb--Fe scrap) to recover the rare earth metal comprising melting the rare earth metal-bearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted material and melted extractant at a temperature and for a time effective to extract the rare earth from the melted material into the melted extractant. The rare earth metal is separated from the extractant metal by vacuum sublimation or distillation. 2 figs.
40 CFR 471.60 - Applicability; description of the titanium forming subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... titanium forming subcategory. 471.60 Section 471.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Titanium Forming Subcategory § 471.60 Applicability; description of the...
40 CFR 471.60 - Applicability; description of the titanium forming subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... titanium forming subcategory. 471.60 Section 471.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Titanium Forming Subcategory § 471.60 Applicability; description of the...
40 CFR 471.60 - Applicability; description of the titanium forming subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... titanium forming subcategory. 471.60 Section 471.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Titanium Forming Subcategory § 471.60 Applicability; description of the...
40 CFR 471.60 - Applicability; description of the titanium forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... titanium forming subcategory. 471.60 Section 471.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Titanium Forming Subcategory § 471.60 Applicability; description of the titanium forming...
40 CFR 471.60 - Applicability; description of the titanium forming subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... titanium forming subcategory. 471.60 Section 471.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Titanium Forming Subcategory § 471.60 Applicability; description of the titanium forming...
40 CFR 464.30 - Applicability; description of the ferrous casting subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... ferrous casting subcategory. 464.30 Section 464.30 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS METAL MOLDING AND CASTING POINT SOURCE CATEGORY Ferrous Casting Subcategory § 464.30 Applicability; description of the ferrous casting subcategory. The...
Recovering heavy rare earth metals from magnet scrap
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ott, Ryan T.; McCallum, Ralph W.; Jones, Lawrence L.
A method of treating rare earth metal-bearing permanent magnet scrap, waste or other material in a manner to recover the heavy rare earth metal content separately from the light rare earth metal content. The heavy rare earth metal content can be recovered either as a heavy rare earth metal-enriched iron based alloy or as a heavy rare earth metal based alloy.
40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock... bearing rock, ore or earth for the phosphate content. [43 FR 9809, Mar. 10, 1978] ...
40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock... bearing rock, ore or earth for the phosphate content. [43 FR 9809, Mar. 10, 1978] ...
40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock... bearing rock, ore or earth for the phosphate content. [43 FR 9809, Mar. 10, 1978] ...
40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...
40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...
40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...
Rare Earth Metals: Resourcefulness and Recovery
NASA Astrophysics Data System (ADS)
Wang, Shijie
2013-10-01
When we appreciate the digital revolution carried over from the twentieth century with mobile communication and the Internet, and when we enjoy our high-tech lifestyle filled with iDevices, hybrid cars, wind turbines, and solar cells in this new century, we should also appreciate that all of these advanced products depend on rare earth metals to function. Although there are only 136,000 tons of annual worldwide demand, (Cho, Rare Earth Metals, Will We Have Enough?)1 rare earth metals are becoming such hot commodities on international markets, due to not only to their increasing uses, including in most critical military hardware, but also to Chinese growth, which accounts for 95% of global rare earth metal production. Hence, the 2013 technical calendar topic, planned by the TMS/Hydrometallurgy and Electrometallurgy Committee, is particularly relevant, with four articles (including this commentary) contributed to the JOM October Issue discussing rare earth metals' resourcefulness and recovery.
40 CFR 421.60 - Applicability: Description of the secondary copper subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... secondary copper subcategory. 421.60 Section 421.60 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Copper Subcategory § 421.60 Applicability: Description of the secondary copper..., processing, and remelting of new and used copper scrap and residues to produce copper metal and copper alloys...
40 CFR 421.60 - Applicability: Description of the secondary copper subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... secondary copper subcategory. 421.60 Section 421.60 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Copper Subcategory § 421.60 Applicability: Description of the secondary copper..., processing, and remelting of new and used copper scrap and residues to produce copper metal and copper alloys...
40 CFR 464.40 - Applicability; description of the zinc casting subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 40 Protection of Environment 30 2011-07-01 2011-07-01 false Applicability; description of the zinc... (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS METAL MOLDING AND CASTING POINT SOURCE CATEGORY Zinc Casting Subcategory § 464.40 Applicability; description of the zinc casting subcategory. The provisions of this...
40 CFR 464.40 - Applicability; description of the zinc casting subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the zinc... (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS METAL MOLDING AND CASTING POINT SOURCE CATEGORY Zinc Casting Subcategory § 464.40 Applicability; description of the zinc casting subcategory. The provisions of this...
40 CFR 464.40 - Applicability; description of the zinc casting subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the zinc casting subcategory. 464.40 Section 464.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) METAL MOLDING AND CASTING POINT SOURCE CATEGORY Zinc Casting Subcategory § 464.40...
40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 30 2012-07-01 2012-07-01 false Applicability: Description of the primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Zinc Subcategory § 421.80 Applicability...
40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 30 2013-07-01 2012-07-01 true Applicability: Description of the primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Zinc Subcategory § 421.80 Applicability:...
40 CFR 464.40 - Applicability; description of the zinc casting subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the zinc casting subcategory. 464.40 Section 464.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) METAL MOLDING AND CASTING POINT SOURCE CATEGORY Zinc Casting Subcategory § 464.40...
40 CFR 464.40 - Applicability; description of the zinc casting subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the zinc casting subcategory. 464.40 Section 464.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) METAL MOLDING AND CASTING POINT SOURCE CATEGORY Zinc Casting Subcategory § 464.40...
40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 29 2014-07-01 2012-07-01 true Applicability: Description of the primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Zinc Subcategory § 421.80 Applicability:...
40 CFR 415.600 - Applicability; description of the stannic oxide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... the production of stannic oxide by the reaction of tin metal with air or oxygen. ... stannic oxide production subcategory. 415.600 Section 415.600 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Stannic Oxide Production Subcategory § 415.600 Applicability; description of the stannic...
30 CFR Appendix I to Subpart T of... - Standard Applicability by Category or Subcategory
Code of Federal Regulations, 2010 CFR
2010-07-01
... Subcategory I Appendix I to Subpart T of Part 57 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION... AND NONMETAL MINES Safety Standards for Methane in Metal and Nonmetal Mines Pt. 57, Subpt. T, App. I Appendix I to Subpart T of Part 57—Standard Applicability by Category or Subcategory Subcategory I-A 57...
30 CFR Appendix I to Subpart T of... - Standard Applicability by Category or Subcategory
Code of Federal Regulations, 2011 CFR
2011-07-01
... Subcategory I Appendix I to Subpart T of Part 57 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION... AND NONMETAL MINES Safety Standards for Methane in Metal and Nonmetal Mines Pt. 57, Subpt. T, App. I Appendix I to Subpart T of Part 57—Standard Applicability by Category or Subcategory Subcategory I-A 57...
Near-Earth asteroids: Metals occurrence, extraction, and fabrication
NASA Astrophysics Data System (ADS)
Westfall, Richard
Near-earth asteroids occur in three principle types of orbits: Amor, Apollo, and Aten. Amor asteroids make relatively close (within 0.3 AU) approaches to the earth's orbit, but do not actually overlap it. Apollo asteroids spend most of their time outside the earth's orbital path, but at some point of close approach to the sun, they cross the orbit of the earth. Aten asteroids are those whose orbits remain inside the earth's path for the majority of their time, with semi-major axes less than 0.1 AU. Near-earth orbit asteroids include: stones, stony-irons, irons, carbonaceous, and super-carbonaceous. Metals within these asteroids include: iron, nickel, cobalt, the platinum group, aluminum, titanium, and others. Focus is on the extraction of ferrous and platinum group metals from the stony-iron asteroids, and the iron asteroids. Extraction of the metal fraction can be accomplished through the use of tunnel-boring-machines (TBM) in the case of the stony-irons. The metals within the story-iron asteroids occur as dispersed granules, which can be separated from the stony fraction through magnetic and gaseous digestion separation techniques. The metal asteroids are processes by drilling and gaseous digestion or by gaseous digestion alone. Manufacturing of structures, housings, framing networks, pressure vessels, mirrors, and other products is accomplished through the chemical vapor deposition (CVD) of metal coating on advanced composites and on the inside of contour-defining inflatables (CDI). Metal coatings on advanced composites provide: resistance to degradation in the hostile environments of space; superior optical properties; superior heat dissipation; service as wear coatings; and service as evidential coatings. Metal coatings on the inside of CDI produce metal load-bearing products. Fibers such as graphite, kevlar, glass, ceramic, metal, etc., can be incorporated in the metal coatings on the inside of CDI producing metal matrix products which exhibit high strength
Near-Earth asteroids: Metals occurrence, extraction, and fabrication
NASA Technical Reports Server (NTRS)
Westfall, Richard
1991-01-01
Near-earth asteroids occur in three principle types of orbits: Amor, Apollo, and Aten. Amor asteroids make relatively close (within 0.3 AU) approaches to the earth's orbit, but do not actually overlap it. Apollo asteroids spend most of their time outside the earth's orbital path, but at some point of close approach to the sun, they cross the orbit of the earth. Aten asteroids are those whose orbits remain inside the earth's path for the majority of their time, with semi-major axes less than 0.1 AU. Near-earth orbit asteroids include: stones, stony-irons, irons, carbonaceous, and super-carbonaceous. Metals within these asteroids include: iron, nickel, cobalt, the platinum group, aluminum, titanium, and others. Focus is on the extraction of ferrous and platinum group metals from the stony-iron asteroids, and the iron asteroids. Extraction of the metal fraction can be accomplished through the use of tunnel-boring-machines (TBM) in the case of the stony-irons. The metals within the story-iron asteroids occur as dispersed granules, which can be separated from the stony fraction through magnetic and gaseous digestion separation techniques. The metal asteroids are processes by drilling and gaseous digestion or by gaseous digestion alone. Manufacturing of structures, housings, framing networks, pressure vessels, mirrors, and other products is accomplished through the chemical vapor deposition (CVD) of metal coating on advanced composites and on the inside of contour-defining inflatables (CDI). Metal coatings on advanced composites provide: resistance to degradation in the hostile environments of space; superior optical properties; superior heat dissipation; service as wear coatings; and service as evidential coatings. Metal coatings on the inside of CDI produce metal load-bearing products. Fibers such as graphite, kevlar, glass, ceramic, metal, etc., can be incorporated in the metal coatings on the inside of CDI producing metal matrix products which exhibit high strength
Deacon, Glen B; Junk, Peter C; Moxey, Graeme J; Ruhlandt-Senge, Karin; St Prix, Courtney; Zuniga, Maria F
2009-01-01
Treatment of a rare earth metal (Ln) and a potential divalent rare earth metal (Ln') or an alkaline earth metal (Ae) with 2,6-diphenylphenol (HOdpp) at elevated temperatures (200-250 degrees C) afforded heterobimetallic aryloxo complexes, which were structurally characterised. A charge-separated species [(Ln'/Ae)(2)(Odpp)(3)][Ln(Odpp)(4)] was obtained for a range of metals, demonstrating the similarities between the chemistry of the divalent rare earth metals and the alkaline earth metals. The [(Ln'/Ae)(2)(Odpp)(3)](+) cation in the heterobimetallic structures is unusual in that it consists solely of bridging aryloxide ligands. A molecular heterobimetallic species [AeEu(Odpp)(4)] (Ae = Ca, Sr, Ba) was obtained by treating an alkaline earth metal and Eu metal with HOdpp at elevated temperatures. Similarly, [BaSr(Odpp)(4)] was prepared by treating Ba metal and Sr metal with HOdpp. Treatment of [Ba(2)(Odpp)(4)] with [Mg(Odpp)(2)(thf)(2)] in toluene afforded [Ba(2)(Odpp)(3)][Mg(Odpp)(3)(thf)]. Analogous solution-based syntheses were not possible for [(Ln'/Ae)(2)(Odpp)(3)][Ln(Odpp)(4)] complexes, for which the free-metal route was essential. As a result of the absence of additional donor ligands, the crystal structures of the heterobimetallic complexes feature extensive pi-Ph-metal interactions involving the pendant phenyl groups of the Odpp ligands, thus enabling the large electropositive metal atoms to attain coordination saturation. The charge-separated heterobimetallic species were purified by extraction with toluene/thf mixtures at ambient temperature (Ba-containing compounds) or by extraction with toluene under pressure above the boiling point of the solvent (other products). In donor solvents, heterobimetallic complexes other than those containing barium were found to fragment into homometallic species.
Effects of Rare Earth Metals on Steel Microstructures
Pan, Fei; Zhang, Jian; Chen, Hao-Long; Su, Yen-Hsun; Kuo, Chia-Liang; Su, Yen-Hao; Chen, Shin-Hau; Lin, Kuan-Ju; Hsieh, Ping-Hung; Hwang, Weng-Sing
2016-01-01
Rare earth metals are used in semiconductors, solar cells and catalysts. This review focuses on the background of oxide metallurgy technologies, the chemical and physical properties of rare earth (RE) metals, the background of oxide metallurgy, the functions of RE metals in steelmaking, and the influences of RE metals on steel microstructures. Future prospects for RE metal applications in steelmaking are also presented. PMID:28773545
Rare earth metal-containing ionic liquids
DOE Office of Scientific and Technical Information (OSTI.GOV)
Prodius, Denis; Mudring, Anja-Verena
As an innovative tool, ionic liquids (ILs) are widely employed as an alternative, smart, reaction media (vs. traditional solvents) offering interesting technology solutions for dissolving, processing and recycling of metal-containing materials. The costly mining and refining of rare earths (RE), combined with increasing demand for high-tech and energy-related applications around the world, urgently requires effective approaches to improve the efficiency of rare earth separation and recovery. In this context, ionic liquids appear as an attractive technology solution. Finally, this paper addresses the structural and coordination chemistry of ionic liquids comprising rare earth metals with the aim to add to understandingmore » prospects of ionic liquids in the chemistry of rare earths.« less
Rare earth metal-containing ionic liquids
Prodius, Denis; Mudring, Anja-Verena
2018-03-07
As an innovative tool, ionic liquids (ILs) are widely employed as an alternative, smart, reaction media (vs. traditional solvents) offering interesting technology solutions for dissolving, processing and recycling of metal-containing materials. The costly mining and refining of rare earths (RE), combined with increasing demand for high-tech and energy-related applications around the world, urgently requires effective approaches to improve the efficiency of rare earth separation and recovery. In this context, ionic liquids appear as an attractive technology solution. Finally, this paper addresses the structural and coordination chemistry of ionic liquids comprising rare earth metals with the aim to add to understandingmore » prospects of ionic liquids in the chemistry of rare earths.« less
Alkali metal and alkali earth metal gadolinium halide scintillators
Bourret-Courchesne, Edith; Derenzo, Stephen E.; Parms, Shameka; Porter-Chapman, Yetta D.; Wiggins, Latoria K.
2016-08-02
The present invention provides for a composition comprising an inorganic scintillator comprising a gadolinium halide, optionally cerium-doped, having the formula A.sub.nGdX.sub.m:Ce; wherein A is nothing, an alkali metal, such as Li or Na, or an alkali earth metal, such as Ba; X is F, Br, Cl, or I; n is an integer from 1 to 2; m is an integer from 4 to 7; and the molar percent of cerium is 0% to 100%. The gadolinium halides or alkali earth metal gadolinium halides are scintillators and produce a bright luminescence upon irradiation by a suitable radiation.
40 CFR 421.240 - Applicability: Description of the secondary nickel subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of nickel by secondary nickel facilities processing slag, spent acids, or scrap metal raw materials. ...
40 CFR 421.190 - Applicability: Description of the secondary indium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of indium at secondary indium facilities processing spent electrolyte solutions and scrap indium metal raw...
40 CFR 421.140 - Applicability: Description of the primary antimony subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of...
40 CFR 421.150 - Applicability: Description of the primary beryllium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of...
40 CFR 421.100 - Applicability: Description of the primary tungsten subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of...
40 CFR 421.120 - Applicability: Description of the secondary silver subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of...
40 CFR 421.280 - Applicability: Description of the secondary tantalum subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of...
40 CFR 471.80 - Applicability; description of the zinc forming subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the zinc forming subcategory. 471.80 Section 471.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Zinc Forming Subcategor...
40 CFR 471.80 - Applicability; description of the zinc forming subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the zinc forming subcategory. 471.80 Section 471.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Zinc Forming Subcategor...
40 CFR 471.80 - Applicability; description of the zinc forming subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the zinc forming subcategory. 471.80 Section 471.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY Zinc Forming Subcategor...
30 CFR 57.22003 - Mine category or subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Standards for Methane in Metal and Nonmetal Mines Mine Categorization § 57.22003 Mine category or... methane and dusts containing volatile matter. Categories and subcategories are defined as follows: (1) Category I applies to mines that operate within a combustible ore body and either liberate methane or have...
METHOD OF MAKING ALLOYS OF SECOND RARE EARTH SERIES METALS
Baker, R.D.; Hayward, B.R.
1963-01-01
>This invention relates to a process for alloying the second rare earth series metals with Mo, Nb, or Zr. A halide of the rare earth metal is mixed with about 1 to 20 at.% of an oxide of Mo, Nb, or Zr. Iodine and an alkali or alkaline earth metal are added, and the resulting mixture is heated in an inert atmosphere to 350 deg C. (AEC)
Method for treating rare earth-transition metal scrap
Schmidt, Frederick A.; Peterson, David T.; Wheelock, John T.; Jones, Lawrence L.
1992-12-29
Rare earth-transition metal (e.g., iron) scrap (e.g., Nd-Fe-B scrap) is flux (slag) remelted to reduce tramp non-metallic impurities, such as oxygen and nitrogen, and metallic impurities, such as Li, Na, Al, etc., picked up by the scrap from previous fabrication operations. The tramp impurities are reduced to concentrations acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. The scrap is electroslag or inductoslag melted using a prefused, rare earth fluoride-bearing flux of CaF.sub.2, CaCl.sub.2 or mixtures thereof or the slag resulting from practice of the thermite reduction process to make a rare earth-iron alloy.
Method for treating rare earth-transition metal scrap
Schmidt, F.A.; Peterson, D.T.; Wheelock, J.T.; Jones, L.L.
1992-12-29
Rare earth-transition metal (e.g., iron) scrap (e.g., Nd-Fe-B scrap) is flux (slag) remelted to reduce tramp non-metallic impurities, such as oxygen and nitrogen, and metallic impurities, such as Li, Na, Al, etc., picked up by the scrap from previous fabrication operations. The tramp impurities are reduced to concentrations acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. The scrap is electroslag or inductoslag melted using a rare earth fluoride-bearing flux of CaF[sub 2], CaCl[sub 2] or mixtures thereof or the slag resulting from practice of the thermite reduction process to make a rare earth-iron alloy. 3 figs.
Rare-earth metal prices in the USA ca. 1960 to 1994
Hedrick, James B.
1997-01-01
Rare-earth metal prices were compiled from the late 1950s and early 1960s through 1994. Although commercial demand for rare-earth metals began in 1908, as the alloy mischmetal, commercial quantities of a wide range of individual rare-earth metals were not available until the late 1950s. The discovery of a large, high-grade rare-earth deposit at Mountain Pass. CA, USA, in 1949, was significant because it led to the production of commercial quantities or rare-earth elements that reduced prices and encouraged wider application of the materials. The availability of ore from Mountain Pass, and other large rare-earth deposits, especially those in Australia and China, has provided the world with abundant resources for rare-earth metal production. This availability, coupled with improved technology from Government and private-sector metallurgical research, has resulted in substantial decreases in rare-earth metal prices since the late 1950s and early 1960s. Price series for the individual rare-earth metals (except promethium) are quoted on a kilogram basis from the late 1950s and early 1960s through 1994. Prices are given in US dollars on an actual and constant dollar basis. Industrial and economic factors affecting prices during this time period are examined.
Rare-earth metal prices in the USA ca. 1960 to 1994
Hedrick, J.B.
1997-01-01
Rare-earth metal prices were compiled from the late 1950s and early 1960s through 1994. Although commercial demand for rare-earth metals began in 1908, as the alloy mischmetal, commercial quantities of a wide range of individual rare-earth metals were not available until the late 1950s. The discovery of a large, high-grade rare-earth deposit at Mountain Pass, CA, USA, in 1949, was significant because it led to the production of commercial quantities of rare-earth elements that reduced prices and encouraged wider application of the materials. The availability of ore from Mountain Pass, and other large rare-earth deposits, especially those in Australia and China, has provided the world with abundant resources for rare-earth metal production. This availability, coupled with improved technology from Government and private-sector metallurgical research, has resulted in substantial decreases in rare-earth metal prices since the late 1950s and early 1960s. Price series for the individual rare-earth metals (except promethium) are quoted on a kilogram basis from the late 1950s and early 1960s through 1994. Prices are given in US dollars on an actual and constant dollar basis. Industrial and economic factors affecting prices during this time period are examined.
30 CFR 57.22003 - Mine category or subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Mine category or subcategory. 57.22003 Section 57.22003 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND...— (A) A concentration of 0.25 percent or more methane has been detected in the mine atmosphere and...
Syntheses and structures of alkaline earth metal bis(diphenylamides).
Gärtner, Martin; Fischer, Reinald; Langer, Jens; Görls, Helmar; Walther, Dirk; Westerhausen, Matthias
2007-06-11
Various preparative procedures are employed in order to synthesize alkaline earth metal bis(diphenylamides) such as (i) metalation of HNPh2 with the alkaline earth metal M, (ii) metalation of HNPh2 with MPh2, (iii) metathesis reaction of MI2 with KNPh2, (iv) metalation of HNPh2 with PhMI in THF, and (v) metathesis reaction of PhMI with KNPh2 followed by a dismutation reaction yielding MPh2 and M(NPh2)2. The magnesium compounds [(diox)MgPh2]infinity (1) and (thf)2Mg(NPh2)2 (2) show tetracoordinate metal atoms, whereas in (dme)2Ca(NPh2)2 (3), (thf)4Sr(NPh2)2 (4), and (thf)4Ba(NPh2)2 (5) the metals are 6-fold coordinated. Additional agostic interactions between an ipso-carbon of one of the phenyl groups of the amide ligand and the alkaline earth metal atom lead to unsymmetric coordination of the NPh2 anions with two strongly different M-N-C angles in 3-5.
Metal sulfide and rare-earth phosphate nanostructures and methods of making same
Wong, Stanislaus; Zhang, Fen
2016-06-28
The present invention provides a method of producing a crystalline rare earth phosphate nanostructure. The method comprising: providing a rare earth metal precursor solution and providing a phosphate precursor solution; placing a porous membrane between the metal precursor solution and the phosphate precursor solution, wherein metal cations of the metal precursor solution and phosphate ions of the phosphate precursor solution react, thereby producing a crystalline rare earth metal phosphate nanostructure.
Thermophysical properties of liquid rare earth metals
NASA Astrophysics Data System (ADS)
Thakor, P. B.; Sonvane, Y. A.; Patel, H. P.; Jani, A. R.
2013-06-01
The thermodynamical properties like long wavelength limit S(0), iso-thermal compressibility (χT), thermal expansion coefficient (αV), thermal pressure coefficient (γV), specific heat at constant volume (CV) and specific heat at constant pressure (CP) are calculated for liquid rare earth metals. Our newly constructed parameter free model potential is used to describe the electron ion interaction due to Sarkar et al (S) local field correction function. Lastly, we conclude that our newly constructed model potential is capable to explain the thermophysical properties of liquid rare earth metals.
40 CFR 721.4668 - Hydrated alkaline earth metal salts of metalloid oxyanions.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 40 Protection of Environment 31 2011-07-01 2011-07-01 false Hydrated alkaline earth metal salts of... Specific Chemical Substances § 721.4668 Hydrated alkaline earth metal salts of metalloid oxyanions. (a... hydrated alkaline earth metal salts of metalloid oxyanions (PMN P-94-1557) is subject to reporting under...
40 CFR 721.4668 - Hydrated alkaline earth metal salts of metalloid oxyanions.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Hydrated alkaline earth metal salts of... Specific Chemical Substances § 721.4668 Hydrated alkaline earth metal salts of metalloid oxyanions. (a... hydrated alkaline earth metal salts of metalloid oxyanions (PMN P-94-1557) is subject to reporting under...
40 CFR 721.4668 - Hydrated alkaline earth metal salts of metalloid oxyanions.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 31 2014-07-01 2014-07-01 false Hydrated alkaline earth metal salts of... Specific Chemical Substances § 721.4668 Hydrated alkaline earth metal salts of metalloid oxyanions. (a... hydrated alkaline earth metal salts of metalloid oxyanions (PMN P-94-1557) is subject to reporting under...
40 CFR 721.4668 - Hydrated alkaline earth metal salts of metalloid oxyanions.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 32 2013-07-01 2013-07-01 false Hydrated alkaline earth metal salts of... Specific Chemical Substances § 721.4668 Hydrated alkaline earth metal salts of metalloid oxyanions. (a... hydrated alkaline earth metal salts of metalloid oxyanions (PMN P-94-1557) is subject to reporting under...
40 CFR 721.4668 - Hydrated alkaline earth metal salts of metalloid oxyanions.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 30 2010-07-01 2010-07-01 false Hydrated alkaline earth metal salts of... Specific Chemical Substances § 721.4668 Hydrated alkaline earth metal salts of metalloid oxyanions. (a... hydrated alkaline earth metal salts of metalloid oxyanions (PMN P-94-1557) is subject to reporting under...
NASA Astrophysics Data System (ADS)
Takahashi, Yuriko
Last decades have witnessed a large expansion of the organometallic heavier alkaline earth metal species. However, continued growth of this promising area of chemistry has been slowed by severe restrictions and limitations in viable synthetic methodologies leading to difficulties in preparing and characterizing the target compounds. There is clearly a need for the further development of synthetic methodologies and detailed structure function analysis that will promote the further advancement of organoalkaline earth metal chemistry in applications as diverse as materials chemistry and catalysis. This thesis work greatly extends the synthetic options currently available towards organoalkaline earth metal species by introducing redox transmetallation protolysis (RTP), a reaction based on the readily available Ph3Bi as a non-toxic transmetallation agent. Based on a straightforward one-pot procedure and work-up, Ph3Bi based RTP presents a powerful synthetic alternative for the facile preparation of a large variety of heavy alkaline earth metal compounds. The second part of the thesis explores the effect of secondary non covalent interactions on the coordination chemistry as well as thermal properties of a series of novel alkali, alkaline earth, rare earth as well as heterobimetallic alkali/alkaline earth fluoroalkoxides. These compounds showcase the significance of non-covalent M···F-C and agostic interactions on metal stabilization and structural features, providing critical input on ligand design for the design of advanced metal organic vapor deposition (MOCVD) precursor materials. This work also showcases the impact of M···F-C interactions over M---co-ligand coordination, a critical precursor design element as well.
Rare-Earth Metals and Their Applications in Aviation
1984-08-01
metals are not as common as iron and steel which are visible everywhere, yet they are not unfamiliar to us. We often encounter them in everyday life...the flint of a lighter. It is an alloy of rare-earth metal and iron . It contains about 30% iron and the remainder is a composite rare-earth alloy...used to manufacture the detonators of bullets and shells as well as the pyrophoric alloys of firing devices. This type of alloy has a 49.5% content of
Meshram, Pratima; Pandey, B D; Mankhand, T R
2016-05-01
Nickel-metal hydride batteries (Ni-MH) contain not only the base metals, but valuable rare earth metals (REMs) viz. La, Sm, Nd, Pr and Ce as well. In view of the importance of resource recycling and assured supply of the contained metals in such wastes, the present study has focussed on the leaching of the rare earth metals from the spent Ni-MH batteries. The conditions for the leaching of REMs from the spent batteries were optimized as: 2M H2SO4, 348K temperature and 120min of time at a pulp density (PD) of 100g/L. Under this condition, the leaching of 98.1% Nd, 98.4% Sm, 95.5% Pr and 89.4% Ce was achieved. Besides the rare earth metals, more than 90% of base metals (Ni, Co, Mn and Zn) were also leached out in this condition. Kinetic data for the dissolution of all the rare earth metals showed the best fit to the chemical control shrinking core model. The leaching of metals followed the mechanism involving the chemical reaction proceeding on the surface of particles by the lixiviant, which was corroborated by the XRD phase analysis and SEM-EDS studies. The activation energy of 7.6, 6.3, 11.3 and 13.5kJ/mol was acquired for the leaching of neodymium, samarium, praseodymium and cerium, respectively in the temperature range 305-348K. From the leach liquor, the mixed rare earth metals were precipitated at pH∼1.8 and the precipitated REMs was analyzed by XRD and SEM studies to determine the phases and the morphological features. Copyright © 2015. Published by Elsevier Ltd.
Crystallographic phases in heavy rare earth metals under megabar pressures
NASA Astrophysics Data System (ADS)
Samudrala, G. K.; Vohra, Y. K.
2012-07-01
Experiments aimed at understanding the crystallographic phases of heavy rare earth metals were carried out in a diamond anvil cell at the Advanced Photon Source, Argonne National Laboratory. Heavy rare earth metals dysprosium (Dy), holmium (Ho), erbium (Er) and thulium (Tm) were compressed to multi-megabar pressures. The rare earth crystal sequence hcp→Sm-type→dhcp→distorted-fcc (dfcc) is observed in all four elements. Upon further compression, a structural transformation to a monoclinic C2/m phase has been observed. We summarize the results from these experiments and present Rietveld structural refinements on high pressure phases for the specific case of dysprosium.
40 CFR 421.275 - Pretreatment standards for existing sources.
Code of Federal Regulations, 2012 CFR
2012-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... standards for existing sources. The mass of wastewater pollutants in primary rare earth metals process.... PSES for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for any 1...
40 CFR 421.275 - Pretreatment standards for existing sources.
Code of Federal Regulations, 2013 CFR
2013-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... standards for existing sources. The mass of wastewater pollutants in primary rare earth metals process.... PSES for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for any 1...
40 CFR 421.275 - Pretreatment standards for existing sources.
Code of Federal Regulations, 2014 CFR
2014-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... standards for existing sources. The mass of wastewater pollutants in primary rare earth metals process.... PSES for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for any 1...
40 CFR 421.275 - Pretreatment standards for existing sources.
Code of Federal Regulations, 2010 CFR
2010-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... standards for existing sources. The mass of wastewater pollutants in primary rare earth metals process.... PSES for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for any 1...
40 CFR 421.275 - Pretreatment standards for existing sources.
Code of Federal Regulations, 2011 CFR
2011-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... standards for existing sources. The mass of wastewater pollutants in primary rare earth metals process.... PSES for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for any 1...
Asymmetric Catalysis with bis(hydroxyphenyl)diamides/rare-earth metal complexes.
Kumagai, Naoya; Shibasaki, Masakatsu
2013-01-02
A series of asymmetric catalysts composed of conformationally flexible amide-based chiral ligands and rare-earth metals was developed for proton-transfer catalysis. These ligands derived from amino acids provide an intriguing chiral platform for the formation of asymmetric catalysts upon complexation with rare-earth metals. The scope of this arsenal of catalysts was further broadened by the development of heterobimetallic catalytic systems. The cooperative function of hydrogen bonding and metal coordination resulted in intriguing substrate specificity and stereocontrol, and the dynamic nature of the catalysts led to a switch of their function. Herein, we summarize our recent exploration of this class of catalysts. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Rare earth-transition metal scrap treatment method
Schmidt, Frederick A.; Peterson, David T.; Wheelock, John T.; Jones, Lawrence L.; Lincoln, Lanny P.
1992-02-11
Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets.
Rare earth-transition metal scrap treatment method
Schmidt, F.A.; Peterson, D.T.; Wheelock, J.T.; Jones, L.L.; Lincoln, L.P.
1992-02-11
Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. 3 figs.
Catalysts Based on Earth-Abundant Metals for Visible Light-Driven Water Oxidation Reaction.
Lin, Junqi; Han, Qing; Ding, Yong
2018-06-04
Exploration of water oxidation catalyst (WOC) with excellent performance is the key for the overall water splitting reaction, which is a feasible strategy to convert solar energy to chemical energy. Although some compounds composed of noble metals, mainly Ru and Ir, have been reported to catalyze water oxidation with high efficiency, catalysts based on low-cost and earth-abundant transition metals are essential for realizing economical and large-scale light-driven water splitting. Various WOCs containing earth-abundant metals (mainly Mn, Fe, Co, Ni, Cu) have been utilized for visible light-driven water oxidation in recent years. In this Personal Account, we summarize our recent developments in WOCs based on earth-abundant transition metals including polyoxometalates (POMs), metal oxides or bimetal oxides, and metal complexes containing multidentate ligand scaffolds for visible light-driven water oxidation reaction. © 2018 The Chemical Society of Japan & Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Process for preparing higher oxides of the alkali and alkaline earth metals
NASA Technical Reports Server (NTRS)
Sadhukhan, P.; Bell, A. (Inventor)
1978-01-01
High purity inorganic higher oxides of the alkali and alkaline earth metals are prepared by subjecting the hydroxide of the alkali and alkaline earth metal to a radio frequency discharge sustained in oxygen. The process is particulary adaptable to the production of high purity potassium superoxide by subjecting potassium hydroxide to glow discharge sustained in oxygen under the pressure of about 0.75 to 1.00 torr.
40 CFR 421.274 - Standards of performance for new sources.
Code of Federal Regulations, 2012 CFR
2012-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... Scrubber. NSPS for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for... wet rare earth chlorides Hexachlorobenzene 0.042 0.042 Chromium (total) 1.544 0.626 Lead 1.168 0.542...
40 CFR 421.274 - Standards of performance for new sources.
Code of Federal Regulations, 2011 CFR
2011-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... Scrubber. NSPS for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for... wet rare earth chlorides Hexachlorobenzene 0.042 0.042 Chromium (total) 1.544 0.626 Lead 1.168 0.542...
40 CFR 421.274 - Standards of performance for new sources.
Code of Federal Regulations, 2013 CFR
2013-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... Scrubber. NSPS for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for... wet rare earth chlorides Hexachlorobenzene 0.042 0.042 Chromium (total) 1.544 0.626 Lead 1.168 0.542...
40 CFR 421.274 - Standards of performance for new sources.
Code of Federal Regulations, 2010 CFR
2010-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... Scrubber. NSPS for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for... wet rare earth chlorides Hexachlorobenzene 0.042 0.042 Chromium (total) 1.544 0.626 Lead 1.168 0.542...
40 CFR 421.274 - Standards of performance for new sources.
Code of Federal Regulations, 2014 CFR
2014-07-01
...) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth... Scrubber. NSPS for the Primary Rare Earth Metals Subcategory Pollutant or pollutant property Maximum for... wet rare earth chlorides Hexachlorobenzene 0.042 0.042 Chromium (total) 1.544 0.626 Lead 1.168 0.542...
Guino-o, Marites A.; Alexander, Jacob S.; McKee, Michael L.; Hope, Håkon; Englich, Ulrich B.
2014-01-01
The synthesis, structural, and spectral characterization as well as a theoretical study of a family of alkaline-earth-metal acetylides provides insights into synthetic access and the structural and bonding characteristics of this group of highly reactive compounds. Based on our earlier communication that reported unusual geometry for a family of triphenylsilyl-substituted alkaline-earth-metal acetylides, we herein present our studies on an expanded family of target derivatives, providing experimental and theoretical data to offer new insights into the intensively debated theme of structural chemistry in heavy alkaline-earth-metal chemistry. PMID:19844925
Moriwaki, Hiroshi; Masuda, Reiko; Yamazaki, Yuki; Horiuchi, Kaoru; Miyashita, Mari; Kasahara, Jun; Tanaka, Tatsuhito; Yamamoto, Hiroki
2016-10-12
The adsorption behaviors of the rare earth metal ions onto freeze-dried powders of genetically engineered microbial strains were compared. Cell powders obtained from four kinds of strains, Bacillus subtilis 168 wild type (WT), lipoteichoic acid-defective (ΔLTA), wall teichoic acid-defective (ΔWTA), and cell wall hydrolases-defective (EFKYOJLp) strains, were used as an adsorbent of the rare earth metal ions at pH 3. The adsorption ability of the rare earth metal ions was in the order of EFKYOJLp > WT > ΔLTA > ΔWTA. The order was the same as the order of the phosphorus quantity of the strains. This result indicates that the main adsorption sites for the ions are the phosphate groups and the teichoic acids, LTA and WTA, that contribute to the adsorption of the rare earth metal ions onto the cell walls. The contribution of WTA was clearly greater than that of LTA. Each microbial powder was added to a solution containing 16 kinds of rare earth metal ions, and the removals (%) of each rare earth metal ion were obtained. The scandium ion showed the highest removal (%), while that of the lanthanum ion was the lowest for all the microbial powders. Differences in the distribution coefficients between the kinds of lanthanide ions by the EFKYOJLp and ΔWTA powders were greater than those of the other strains. Therefore, the EFKYOJLp and ΔWTA powders could be applicable for the selective extraction of the lanthanide ions. The ΔLTA powder coagulated by mixing with a rare earth metal ion, although no sedimentation of the WT or ΔWTA powder with a rare earth metal ion was observed under the same conditions. The EFKYOJLp powder was also coagulated, but its flocculating activity was lower than that of ΔLTA. The ΔLTA and EFKYOJLp powders have a long shape compared to those of the WT or ΔWTA strain. The shapes of the cells will play an important role in the sedimentation of the microbial powders with rare earth metal ions. As the results, three kinds of the genetically
Environmental Defects And Economic Impact On Global Market Of Rare Earth Metals
NASA Astrophysics Data System (ADS)
Charalampides, G.; Vatalis, K.; Karayannis, V.; Baklavaridis, A.
2016-11-01
Rare earth elements include the 14 lanthanides as well as lanthanium and often yttrium. Actually, most of them are not very rare and occur widely dispersed in a variety of rocks. Rare earth metals are vital to some of the world's faster growing industries: catalysts, Nd-magnets, ceramics, glass, metallurgy, battery alloys, electronics and phosphors. Worldwide, the main countries for distribution of rare earths deposits include China, USA, Russia, Brasil, India, Australia, Greenland and Malaysia. The mining and processing of rare earth metals usually result in significant environmental defects. Many deposits are associated with high concentrations of radioactive elements such as uranium and thorium, which requires separate treatment and disposal. The accumulation of rare earth elements in soils has occurred due to pollution caused by the exploitation of rare earth resources and the wide use of rare earths as fertilizers in agriculture. This accumulation has a toxic effect on the soil microfauna community. However, there are large differences in market prices due to the degree of purity determined by the specifications in the applications. The main focus of this article is to overview Rare Earth Metals’ overall impact on global economy and their environmental defects on soils during processing techniques and as they are used as fertilizers.
Fluorescent probes and bioimaging: alkali metals, alkaline earth metals and pH.
Yin, Jun; Hu, Ying; Yoon, Juyoung
2015-07-21
All living species and life forms have an absolute requirement for bio-functional metals and acid-base equilibrium chemistry owing to the critical roles they play in biological processes. Hence, a great need exists for efficient methods to detect and monitor biometals and acids. In the last few years, great attention has been paid to the development of organic molecule based fluorescent chemosensors. The availability of new synthetic fluorescent probes has made fluorescence microscopy an indispensable tool for tracing biologically important molecules and in the area of clinical diagnostics. This review highlights the recent advances that have been made in the design and bioimaging applications of fluorescent probes for alkali metals and alkaline earth metal cations, including lithium, sodium and potassium, magnesium and calcium, and for pH determination within biological systems.
Chemoselective single-site Earth-abundant metal catalysts at metal–organic framework nodes
Manna, Kuntal; Ji, Pengfei; Lin, Zekai; Greene, Francis X.; Urban, Ania; Thacker, Nathan C.; Lin, Wenbin
2016-01-01
Earth-abundant metal catalysts are critically needed for sustainable chemical synthesis. Here we report a simple, cheap and effective strategy of producing novel earth-abundant metal catalysts at metal–organic framework (MOF) nodes for broad-scope organic transformations. The straightforward metalation of MOF secondary building units (SBUs) with cobalt and iron salts affords highly active and reusable single-site solid catalysts for a range of organic reactions, including chemoselective borylation, silylation and amination of benzylic C–H bonds, as well as hydrogenation and hydroboration of alkenes and ketones. Our structural, spectroscopic and kinetic studies suggest that chemoselective organic transformations occur on site-isolated, electron-deficient and coordinatively unsaturated metal centres at the SBUs via σ-bond metathesis pathways and as a result of the steric environment around the catalytic site. MOFs thus provide a novel platform for the development of highly active and affordable base metal catalysts for the sustainable synthesis of fine chemicals. PMID:27574182
Chemoselective single-site Earth-abundant metal catalysts at metal–organic framework nodes
DOE Office of Scientific and Technical Information (OSTI.GOV)
Manna, Kuntal; Ji, Pengfei; Lin, Zekai
2016-08-30
Earth-abundant metal catalysts are critically needed for sustainable chemical synthesis. Here we report a simple, cheap and effective strategy of producing novel earth-abundant metal catalysts at metal–organic framework (MOF) nodes for broad-scope organic transformations. The straightforward metalation of MOF secondary building units (SBUs) with cobalt and iron salts affords highly active and reusable single-site solid catalysts for a range of organic reactions, including chemoselective borylation, silylation and amination of benzylic C–H bonds, as well as hydrogenation and hydroboration of alkenes and ketones. Our structural, spectroscopic and kinetic studies suggest that chemoselective organic transformations occur on site-isolated, electron-deficient and coordinatively unsaturatedmore » metal centres at the SBUs via σ-bond metathesis pathways and as a result of the steric environment around the catalytic site. MOFs thus provide a novel platform for the development of highly active and affordable base metal catalysts for the sustainable synthesis of fine chemicals.« less
40 CFR 461.60 - Applicability; description of the magnesium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...
40 CFR 461.60 - Applicability; description of the magnesium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...
40 CFR 461.60 - Applicability; description of the magnesium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...
40 CFR 436.240 - Applicability; description of the diatomite subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...
40 CFR 436.240 - Applicability; description of the diatomite subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...
40 CFR 436.240 - Applicability; description of the diatomite subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...
40 CFR 461.60 - Applicability; description of the magnesium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies to...
40 CFR 461.60 - Applicability; description of the magnesium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies to...
Yang, Fan; Kubota, Fukiko; Baba, Yuzo; Kamiya, Noriho; Goto, Masahiro
2013-06-15
The recycling of rare earth metals from phosphor powders in waste fluorescent lamps by solvent extraction using ionic liquids was studied. Acid leaching of rare earth metals from the waste phosphor powder was examined first. Yttrium (Y) and europium (Eu) dissolved readily in the acid solution; however, the leaching of other rare earth metals required substantial energy input. Ionization of target rare earth metals from the waste phosphor powders into the leach solution was critical for their successful recovery. As a high temperature was required for the complete leaching of all rare earth metals, ionic liquids, for which vapor pressure is negligible, were used as an alternative extracting phase to the conventional organic diluent. An extractant, N, N-dioctyldiglycol amic acid (DODGAA), which was recently developed, showed a high affinity for rare earth metal ions in liquid-liquid extraction although a conventional commercial phosphonic extractant did not. An effective recovery of the rare earth metals, Y, Eu, La and Ce, from the metal impurities, Fe, Al and Zn, was achieved from the acidic leach solution of phosphor powders using an ionic liquid containing DODGAA as novel extractant system. Copyright © 2013 Elsevier B.V. All rights reserved.
NASA Astrophysics Data System (ADS)
Kaneko, Tomoaki; Saito, Riichiro
2017-11-01
Energetics and electronic structures of alkali metal (Li, Na, K, Rb, and Cs) and alkaline earth metal (Be, Mg, Ca, Sr, and Ba) atoms intercalated bilayer graphene are systematically investigated using first-principles calculations based on density functional theory. Formation of alkali and alkaline earth metal atoms intercalated bilayer graphene is exothermic except for Be and Mg. The interlayer state between two graphene layers is occupied for K, Rb, Cs, Ca, Sr, and Ba. We find that the energetic position of the interlayer states between bilayer graphene monotonically shifts downward with increasing of interlayer distance. The interlayer distances of more than 4.5 Å and 4.0 Å, respectively, are necessary for the occupation of the interlayer state in bilayer graphene for alkali and alkaline earth metal atoms, which is almost independent of the intercalant metal species. We discuss the relevance to occurrence of superconductivity for the metal intercalated bilayer graphene in terms of the occupation of the interlayer state and the phonon frequency of metal ions.
Krikorian, Oscar H.; Curtis, Paul G.
1992-01-01
An improved molten metal containment vessel is disclosed in which wetting of the vessel's inner wall surfaces by molten metal is inhibited by coating at least the inner surfaces of the containment vessel with one or more rare earth oxysulfide or rare earth sulfide compounds to inhibit wetting and or adherence by the molten metal to the surfaces of the containment vessel.
40 CFR 419.20 - Applicability; description of the cracking subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... cracking subcategory. 419.20 Section 419.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS PETROLEUM REFINING POINT SOURCE CATEGORY Cracking Subcategory § 419.20 Applicability; description of the cracking subcategory. The provisions of this subpart are...
40 CFR 419.20 - Applicability; description of the cracking subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... cracking subcategory. 419.20 Section 419.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS PETROLEUM REFINING POINT SOURCE CATEGORY Cracking Subcategory § 419.20 Applicability; description of the cracking subcategory. The provisions of this subpart are...
40 CFR 418.20 - Applicability; description of the ammonia subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...
40 CFR 418.20 - Applicability; description of the ammonia subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...
40 CFR 418.20 - Applicability; description of the ammonia subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...
40 CFR 418.20 - Applicability; description of the ammonia subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...
40 CFR 418.20 - Applicability; description of the ammonia subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...
40 CFR 411.20 - Applicability; description of the leaching subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...
40 CFR 411.20 - Applicability; description of the leaching subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...
40 CFR 411.20 - Applicability; description of the leaching subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...
40 CFR 436.380 - Applicability; description of the graphite subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart...
40 CFR 436.380 - Applicability; description of the graphite subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart are applicable to the mining and processing of naturally occurring graphite. ...
40 CFR 461.20 - Applicability; description of the calcium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges to...
40 CFR 461.20 - Applicability; description of the calcium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges to...
40 CFR 436.240 - Applicability; description of the diatomite subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart...
40 CFR 436.240 - Applicability; description of the diatomite subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart...
40 CFR 461.50 - Applicability; description of the lithium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...
40 CFR 461.50 - Applicability; description of the lithium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...
40 CFR 461.50 - Applicability; description of the lithium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges to...
40 CFR 461.50 - Applicability; description of the lithium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...
40 CFR 461.50 - Applicability; description of the lithium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges to...
40 CFR 467.40 - Applicability; description of the forging subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... forging subcategory. 467.40 Section 467.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ALUMINUM FORMING POINT SOURCE CATEGORY Forging Subcategory § 467.40 Applicability; description of the forging subcategory. This subpart applies to discharges of...
40 CFR 461.20 - Applicability; description of the calcium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...
40 CFR 461.20 - Applicability; description of the calcium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...
40 CFR 461.20 - Applicability; description of the calcium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...
40 CFR 435.60 - Applicability; description of the stripper subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS OIL AND GAS EXTRACTION POINT SOURCE CATEGORY Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of this subpart...
40 CFR 405.40 - Applicability; description of the butter subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...
40 CFR 405.40 - Applicability; description of the butter subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...
40 CFR 405.40 - Applicability; description of the butter subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...
40 CFR 405.40 - Applicability; description of the butter subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...
40 CFR 405.40 - Applicability; description of the butter subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...
40 CFR 411.20 - Applicability; description of the leaching subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...
40 CFR 436.380 - Applicability; description of the graphite subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart...
40 CFR 436.130 - Applicability; description of the borax subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are...
40 CFR 436.130 - Applicability; description of the borax subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are...
40 CFR 435.60 - Applicability; description of the stripper subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...
40 CFR 435.60 - Applicability; description of the stripper subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...
40 CFR 435.60 - Applicability; description of the stripper subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...
NASA Astrophysics Data System (ADS)
Fakheri, Hamideh; Tayyari, Sayyed Faramarz; Heravi, Mohammad Momen; Morsali, Ali
2017-12-01
Theoretical quantum chemistry calculations were used to assign the observed vibrational band frequencies of Be, Mg, Ca, Sr, and Ba acetylacetonates complexes. Density functional theory (DFT) calculations have been carried out at the B3LYP level, using LanL2DZ, def2SVP, and mixed, GenECP, (def2SVP for metal ions and 6-311++G** for all other atoms) basis sets. The B3LYP level, with mixed basis sets, was utilized for calculations of vibrational frequencies, IR intensity, and Raman activity. Analysis of the vibrational spectra indicates that there are several bands which could almost be assigned mainly to the metal-oxygen vibrations. The strongest Raman band in this region could be used as a measure of the stability of the complex. The effects of central metal on the bond orders and charge distributions in alkaline earth metal acetylacetonates were studied by the Natural Bond Orbital (NBO) method for fully optimized compounds. Optimization were performed at the B3LYP/6-311++G** level for the lighter alkaline earth metal complexes (Be, Mg, and Ca acetylacetonates) while the B3LYP level, using LanL2DZ (extrabasis, d and f on oxygen and metal atoms), def2SVP and mixed (def2SVP on metal ions and 6-311++G** for all other atoms) basis sets for all understudy complexes. Calculations indicate that the covalence nature of metal-oxygen bonds considerably decreases from Be to Ba complexes. The nature of metal-oxygen bond was further studied by using Atoms In Molecules (AIM) analysis. The topological parameters, Wiberg bond orders, natural charges of O and metal ions, and also some vibrational band frequencies were correlated with the stability constants of understudy complexes.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Vohra, Yogesh K.; Sangala, Bagvanth Reddy; Stemshorn, Andrew K.
2008-07-01
High-pressure studies have been performed on heavy rare earth metals Terbium (Tb) to 155 GPa and Holmium (Ho) to 134 GPa in a diamond anvil cell at room temperature. The following crystal structure sequence was observed in both metals hcp {yields} Sm-type {yields} dhcp {yields} distorted fcc (hR-24) {yields} monoclinic (C2/m) with increasing pressure. The last transformation to a low symmetry monoclinic phase is accompanied by a volume collapse of 5 % for Tb at 51 GPa and a volume collapse of 3 % for Ho at 103 GPa. This volume collapse under high pressure is reminiscent of f-shell delocalizationmore » in light rare earth metal Cerium (Ce), Praseodymium (Pr), and heavy actinide metals Americium (Am) and Curium (Cm). The orthorhombic Pnma phase that has been reported in Am and Cm after f-shell delocalization is not observed in heavy rare earth metals under high pressures. (authors)« less
40 CFR 435.40 - Applicability; description of the coastal subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...
40 CFR 435.40 - Applicability; description of the coastal subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...
40 CFR 435.40 - Applicability; description of the coastal subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...
40 CFR 436.130 - Applicability; description of the borax subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...
40 CFR 436.130 - Applicability; description of the borax subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...
40 CFR 436.130 - Applicability; description of the borax subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...
40 CFR 454.50 - Applicability; description of the essential oils subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...
40 CFR 454.50 - Applicability; description of the essential oils subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...
40 CFR 454.50 - Applicability; description of the essential oils subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...
40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory. The provisions... paper at semi-chemical mills. ...
40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory. The provisions... paper at semi-chemical mills. ...
40 CFR 405.110 - Applicability; description of the condensed whey subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... condensed whey subcategory. 405.110 Section 405.110 Protection of Environment ENVIRONMENTAL PROTECTION... Condensed Whey Subcategory § 405.110 Applicability; description of the condensed whey subcategory. The... whey and condensed acid whey. ...
40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Semi-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory... of pulp and paper at semi-chemical mills. ...
Lee, Sang-Joon; Park, Sung Soo; Lee, Sang Hyun; Hong, Sang-Hyun; Ha, Chang-Sik
2013-11-01
Transparent mesoporous silica plates doped with rare-earth metal oxide were prepared using solvent-evaporation method based on the self-organization between structure-directing agent and silicate in a non-aqueous solvent. A triblock copolymer, Pluronic (F127 or P123), was used as the structure-directing agent, while tetraethyl orthosilicate (TEOS) was used as a silica source. The pore diameter and the surface area of the mesoporous silica plate prepared with the optimized conditions were ca 40 A and 600 m2 g(-1), respectively, for both structure-directing agent. Rare-earth metal oxides (Eu, Tb, Tm oxide) in mesochannel were formed via one-step synthetic route based on the preparation method of a silica plate. Optical properties of rare-earth metal oxide-doped mesoporous silica plates were investigated by UV irradiation and photoluminescence (PL) spectroscopy. Under the exitation wavelength of 254 nm, the doped mesoporous silica plates emitted red, green and blue for Eu, Tb and Tm oxides, respectively. Rare-earth metal oxide-doped mesoporous silica plates showed enhanced PL intensity compared to that of the bulk rare-earth metal oxide.
40 CFR 427.50 - Applicability; description of the asbestos millboard subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asbestos millboard subcategory. 427.50 Section 427.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Millboard Subcategory § 427.50 Applicability; description of the asbestos millboard subcategory...
40 CFR 427.50 - Applicability; description of the asbestos millboard subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asbestos millboard subcategory. 427.50 Section 427.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Millboard Subcategory § 427.50 Applicability; description of the asbestos millboard subcategory...
40 CFR 422.20 - Applicability; description of the phosphorus consuming subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... phosphorus consuming subcategory. 422.20 Section 422.20 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphorus Consuming Subcategory § 422.20 Applicability; description of the phosphorus consuming subcategory... manufacture of phosphoric acid, phosphorus pentoxide, phosphorus pentasulfide, phosphorus trichloride, and...
40 CFR 422.20 - Applicability; description of the phosphorus consuming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... phosphorus consuming subcategory. 422.20 Section 422.20 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphorus Consuming Subcategory § 422.20 Applicability; description of the phosphorus consuming subcategory... manufacture of phosphoric acid, phosphorus pentoxide, phosphorus pentasulfide, phosphorus trichloride, and...
Adsorption Behavior of Rare Earth Metal Cations in the Interlayer Space of γ-ZrP.
Takei, Takahiro; Iidzuka, Kiyoaki; Miura, Akira; Yanagida, Sayaka; Kumada, Nobuhiro; Magome, Eisuke; Moriyoshi, Chikako; Kuroiwa, Yoshihiro
2016-10-04
Adsorption competencies of rare earth metal cations in γ-zirconium phosphate were examined by ICP, synchrotron X-ray diffraction (SXRD), and ab initio simulation. The adsorption amounts are around 0.06-0.10 per zirconium phosphate. From the SXRD patterns of the adsorbed samples, the basal spacing estimated by c sin β increased linearly with an increasing ionic radius of rare earth metal cation, though a and b lattice constants show no change. These SXRD patterns can be classified into four groups that have different super lattices. The four superlattices have multiplicities of x131, x241, and x221 for the xabc axis, and the location of the rare earth metal cation in the original unit cell changes depending on the superlattice cell. In the x131 superlattice, Yb and Er occupied the site near the zirconium phosphate layer, though La and Ce in the x221 superlattice remained in the center position between the phosphate sheet. For the ab initio simulation of γ-ZrP with the typical rare earth metal cations (Tb, Eu, Dy, and La), the results of simulation show a similar tendency of the position estimated by SXRD refinements.
40 CFR 427.60 - Applicability; description of the asbestos roofing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asbestos roofing subcategory. 427.60 Section 427.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Roofing Subcategory § 427.60 Applicability; description of the asbestos roofing subcategory. The...
40 CFR 427.60 - Applicability; description of the asbestos roofing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asbestos roofing subcategory. 427.60 Section 427.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Roofing Subcategory § 427.60 Applicability; description of the asbestos roofing subcategory. The...
40 CFR 427.90 - Applicability; description of the solvent recovery subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... solvent recovery subcategory. 427.90 Section 427.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Solvent Recovery Subcategory § 427.90 Applicability; description of the solvent recovery subcategory. The...
High pressure phase transitions in the rare earth metal erbium to 151 GPa.
Samudrala, Gopi K; Thomas, Sarah A; Montgomery, Jeffrey M; Vohra, Yogesh K
2011-08-10
High pressure x-ray diffraction studies have been performed on the heavy rare earth metal erbium (Er) in a diamond anvil cell at room temperature to a pressure of 151 GPa and Er has been compressed to 40% of its initial volume. The rare earth crystal structure sequence hcp → Sm type → dhcp → distorted fcc (hcp: hexagonal close packed; fcc: face centered cubic; dhcp: double hcp) is observed in Er below 58 GPa. We have carried out Rietveld refinement of crystal structures in the pressure range between 58 GPa and 151 GPa. We have examined various crystal structures that have been proposed for the distorted fcc (dfcc) phase and the post-dfcc phase in rare earth metals. We find that the hexagonal hR 24 structure is the best fit between 58 and 118 GPa. Above 118 GPa, a structural transformation from hR 24 phase to a monoclinic C 2/m phase is observed with a volume change of - 1.9%. We have also established a clear trend for the pressure at which a post-dfcc phase is formed in rare earth metals and show that there is a monotonic increase in this pressure with the filling of 4f shell.
High pressure phase transitions in the rare earth metal erbium to 151 GPa
NASA Astrophysics Data System (ADS)
Samudrala, Gopi K.; Thomas, Sarah A.; Montgomery, Jeffrey M.; Vohra, Yogesh K.
2011-08-01
High pressure x-ray diffraction studies have been performed on the heavy rare earth metal erbium (Er) in a diamond anvil cell at room temperature to a pressure of 151 GPa and Er has been compressed to 40% of its initial volume. The rare earth crystal structure sequence {hcp} \\to {Sm}~ {type} \\to {dhcp} \\to {distorted} fcc (hcp: hexagonal close packed; fcc: face centered cubic; dhcp: double hcp) is observed in Er below 58 GPa. We have carried out Rietveld refinement of crystal structures in the pressure range between 58 GPa and 151 GPa. We have examined various crystal structures that have been proposed for the distorted fcc (dfcc) phase and the post-dfcc phase in rare earth metals. We find that the hexagonal hR 24 structure is the best fit between 58 and 118 GPa. Above 118 GPa, a structural transformation from hR 24 phase to a monoclinic C 2/m phase is observed with a volume change of - 1.9%. We have also established a clear trend for the pressure at which a post-dfcc phase is formed in rare earth metals and show that there is a monotonic increase in this pressure with the filling of 4f shell.
40 CFR 464.10 - Applicability; description of the aluminum casting subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... aluminum casting subcategory. 464.10 Section 464.10 Protection of Environment ENVIRONMENTAL PROTECTION... Aluminum Casting Subcategory § 464.10 Applicability; description of the aluminum casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from aluminum casting operations as...
40 CFR 468.10 - Applicability; description of the copper forming subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... copper forming subcategory. 468.10 Section 468.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COPPER FORMING POINT SOURCE CATEGORY Copper Forming Subcategory § 468.10 Applicability; description of the copper forming subcategory. This subpart applies to...
40 CFR 468.10 - Applicability; description of the copper forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... copper forming subcategory. 468.10 Section 468.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COPPER FORMING POINT SOURCE CATEGORY Copper Forming Subcategory § 468.10 Applicability; description of the copper forming subcategory. This subpart applies to...
40 CFR 464.20 - Applicability; description of the copper casting subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... copper casting subcategory. 464.20 Section 464.20 Protection of Environment ENVIRONMENTAL PROTECTION... Copper Casting Subcategory § 464.20 Applicability; description of the copper casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from copper casting operations as...
40 CFR 464.20 - Applicability; description of the copper casting subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... copper casting subcategory. 464.20 Section 464.20 Protection of Environment ENVIRONMENTAL PROTECTION... Copper Casting Subcategory § 464.20 Applicability; description of the copper casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from copper casting operations as...
40 CFR 424.30 - Applicability; description of the slag processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... processing subcategory. 424.30 Section 424.30 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERROALLOY MANUFACTURING POINT SOURCE CATEGORY Slag Processing Subcategory § 424.30 Applicability; description of the slag processing subcategory. The provisions of this...
40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...
40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...
40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...
40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...
40 CFR 440.50 - Applicability; description of the titanium ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...
40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...
40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...
40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...
40 CFR 440.90 - Applicability; description of the antimony ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...
40 CFR 440.90 - Applicability; description of the antimony ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...
40 CFR 440.50 - Applicability; description of the titanium ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...
40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...
40 CFR 440.50 - Applicability; description of the titanium ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...
40 CFR 440.90 - Applicability; description of the antimony ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...
40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...
40 CFR 436.60 - Applicability; description of the asphaltic mineral subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asphaltic mineral subcategory. 436.60 Section 436.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Asphaltic Mineral Subcategory § 436.60 Applicability; description of the asphaltic mineral subcategory. The...
40 CFR 436.60 - Applicability; description of the asphaltic mineral subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asphaltic mineral subcategory. 436.60 Section 436.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Asphaltic Mineral Subcategory § 436.60 Applicability; description of the asphaltic mineral subcategory. The...
40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...
40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...
Zhang, Liangliang; Yuan, Shuai; Feng, Liang; Guo, Bingbing; Qin, Jun-Sheng; Xu, Ben; Lollar, Christina; Sun, Daofeng; Zhou, Hong-Cai
2018-04-23
Multi-component metal-organic frameworks (MOFs) with precisely controlled pore environments are highly desired owing to their potential applications in gas adsorption, separation, cooperative catalysis, and biomimetics. A series of multi-component MOFs, namely PCN-900(RE), were constructed from a combination of tetratopic porphyrinic linkers, linear linkers, and rare-earth hexanuclear clusters (RE 6 ) under the guidance of thermodynamics. These MOFs exhibit high surface areas (up to 2523 cm 2 g -1 ) and unlimited tunability by modification of metal nodes and/or linker components. Post-synthetic exchange of linear linkers and metalation of two organic linkers were realized, allowing the incorporation of a wide range of functional moieties. Two different metal sites were sequentially placed on the linear linker and the tetratopic porphyrinic linker, respectively, giving rise to an ideal platform for heterogeneous catalysis. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...
40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate obtained from...
40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...
40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...
40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate obtained from...
40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...
40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...
40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...
40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The provisions of this...
40 CFR 405.120 - Applicability; description of the dry whey subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... whey subcategory. 405.120 Section 405.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Dry Whey Subcategory § 405.120 Applicability; description of the dry whey subcategory. The provisions of this subpart...
40 CFR 454.50 - Applicability; description of the essential oils subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of essential oils. ...
40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...
40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...
40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...
40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 471.70 - Applicability; description of the uranium forming subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 471.70 - Applicability; description of the uranium forming subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 471.70 - Applicability; description of the uranium forming subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...
40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...
40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...
40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...
40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...
40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...
40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...
40 CFR 454.50 - Applicability; description of the essential oils subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of essential oils. ...
40 CFR 430.70 - Applicability; description of the mechanical pulp subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... mechanical pulp subcategory. 430.70 Section 430.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Mechanical Pulp Subcategory § 430.70 Applicability; description of the mechanical pulp subcategory. The... groundwood chemi-mechanical mills; the production of pulp and paper at groundwood mills through the...
40 CFR 440.110 - Applicability; description of the platinum ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this...
40 CFR 440.110 - Applicability; description of the platinum ore subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this...
40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 406.70 - Applicability; description of the animal feed subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... animal feed subcategory. 406.70 Section 406.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Animal Feed Subcategory § 406.70 Applicability; description of the animal feed subcategory. The provisions of this subpart are...
40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...
40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...
40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...
40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...
40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...
40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...
40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...
40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...
40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...
40 CFR 440.90 - Applicability; description of the antimony ore subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The provisions of this...
40 CFR 440.40 - Applicability; description of the mercury ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...
40 CFR 440.10 - Applicability; description of the iron ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...
40 CFR 440.10 - Applicability; description of the iron ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...
40 CFR 440.70 - Applicability; description of the nickel ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...
40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The provisions of this...
40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The provisions of this...
40 CFR 440.40 - Applicability; description of the mercury ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...
40 CFR 440.10 - Applicability; description of the iron ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...
40 CFR 440.90 - Applicability; description of the antimony ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The provisions of this...
40 CFR 440.70 - Applicability; description of the nickel ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...
40 CFR 440.40 - Applicability; description of the mercury ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...
40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The provisions of this...
40 CFR 440.50 - Applicability; description of the titanium ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The provisions of this...
40 CFR 440.70 - Applicability; description of the nickel ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...
40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...
40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...
40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...
40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...
40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...
40 CFR 428.110 - Applicability; description of the latex foam subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... latex foam subcategory. 428.110 Section 428.110 Protection of Environment ENVIRONMENTAL PROTECTION... Foam Subcategory § 428.110 Applicability; description of the latex foam subcategory. The provisions of... foam except for those discharges from textile plants subject to the provisions of part 410 of this...
40 CFR 428.110 - Applicability; description of the latex foam subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... latex foam subcategory. 428.110 Section 428.110 Protection of Environment ENVIRONMENTAL PROTECTION... Foam Subcategory § 428.110 Applicability; description of the latex foam subcategory. The provisions of... foam except for those discharges from textile plants subject to the provisions of part 410 of this...
40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock subcategory. The provisions of this subpart are applicable to the mining and the processing of phosphate bearing rock, ore or...
40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock subcategory. The provisions of this subpart are applicable to the mining and the processing of phosphate bearing rock, ore or...
40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...
40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...
40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...
40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...
40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...
40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving pulp at kraft...
40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving pulp at kraft...
40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Zinc Subcategory § 421.80 Applicability: Description of the primary zinc subcategory. The provisions of this subpart are applicable to discharges resulting from the production of primary zinc by either...
40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Zinc Subcategory § 421.80 Applicability: Description of the primary zinc subcategory. The provisions of this subpart are applicable to discharges resulting from the production of primary zinc by either...
40 CFR 421.70 - Applicability: Description of the primary lead subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...
40 CFR 421.70 - Applicability: Description of the primary lead subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...
40 CFR 421.70 - Applicability: Description of the primary lead subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...
40 CFR 421.70 - Applicability: Description of the primary lead subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...
40 CFR 440.70 - Applicability; description of the nickel ore subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions of this subpart...
40 CFR 440.70 - Applicability; description of the nickel ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions of this subpart...
40 CFR 440.40 - Applicability; description of the mercury ore subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions of subpart D...
40 CFR 421.70 - Applicability: Description of the primary lead subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...
40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...
40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries...
40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...
40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries...
40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...
Pentadienyl chemistry of the heavy alkaline-earth metals revisited.
Reiners, Matthias; Fecker, Ann Christin; Freytag, Matthias; Jones, Peter G; Walter, Marc D
2014-05-14
Open-metallocenes of the heavy alkaline-earth metals [(η(5)-Pdl')2M(thf)n] (M = Ca (1), Sr (2), n = 1; M = Ba (3), n = 2; Pdl' = 2,4-tBu2C5H5) are readily prepared by salt-metathesis between MI2 and KPdl' and characterized by NMR spectroscopy and X-ray diffraction studies.
NASA Astrophysics Data System (ADS)
Xu, Shenzhen
Metal oxide materials are ubiquitous in nature and in our daily lives. For example, the Earth's mantle layer that makes up about 80% of our Earth's volume is composed of metal oxide materials, the cathode materials in the lithium-ion batteries that provide power for most of our mobile electronic devices are composed of metal oxides, the chemical components of the passivation layers on many kinds of metal materials that protect the metal from further corrosion are metal oxides. This thesis is composed of two major topics about the metal oxide materials in nature. The first topic is about our computational study of the iron chemistry in the Earth's lower mantle metal oxide materials, i.e. the bridgmanite (Fe-bearing MgSiO3 where iron is the substitution impurity element) and the ferropericlase (Fe-bearing MgO where iron is the substitution impurity element). The second topic is about our multiscale modeling works for understanding the nanoscale kinetic and thermodynamic properties of the metal oxide cathode interfaces in Li-ion batteries, including the intrinsic cathode interfaces (intergrowth of multiple types of cathode materials, compositional gradient cathode materials, etc.), the cathode/coating interface systems and the cathode/electrolyte interface systems. This thesis uses models based on density functional theory quantum mechanical calculations to explore the underlying physics behind several types of metal oxide materials existing in the interior of the Earth or used in the applications of lithium-ion batteries. The exploration of this physics can help us better understand the geochemical and seismic properties of our Earth and inspire us to engineer the next generation of electrochemical technologies.
40 CFR 440.110 - Applicability; description of the platinum ore subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...
40 CFR 440.110 - Applicability; description of the platinum ore subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...
40 CFR 440.110 - Applicability; description of the platinum ore subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...
40 CFR 471.80 - Applicability; description of the zinc forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the zinc... CATEGORY Zinc Forming Subcategory § 471.80 Applicability; description of the zinc forming subcategory. This... pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory. ...
40 CFR 471.80 - Applicability; description of the zinc forming subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... 40 Protection of Environment 30 2011-07-01 2011-07-01 false Applicability; description of the zinc... CATEGORY Zinc Forming Subcategory § 471.80 Applicability; description of the zinc forming subcategory. This... pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory. ...
40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions... the rolling with emulsions subcategory. ...
40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions... the rolling with emulsions subcategory. ...
Effect of rare earth metal on the spin-orbit torque in magnetic heterostructures
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ueda, Kohei; Pai, Chi-Feng; Tan, Aik Jun
2016-06-06
We report the effect of the rare earth metal Gd on current-induced spin-orbit torques (SOTs) in perpendicularly magnetized Pt/Co/Gd heterostructures, characterized using harmonic measurements and spin-torque ferromagnetic resonance (ST-FMR). By varying the Gd metal layer thickness from 0 nm to 8 nm, harmonic measurements reveal a significant enhancement of the effective fields generated from the Slonczewski-like and field-like torques. ST-FMR measurements confirm an enhanced effective spin Hall angle and show a corresponding increase in the magnetic damping constant with increasing Gd thickness. These results suggest that Gd plays an active role in generating SOTs in these heterostructures. Our finding may lead tomore » spin-orbitronics device application such as non-volatile magnetic random access memory, based on rare earth metals.« less
Theoretical Study of pKa Values for Trivalent Rare-Earth Metal Cations in Aqueous Solution.
Yu, Donghai; Du, Ruobing; Xiao, Ji-Chang; Xu, Shengming; Rong, Chunying; Liu, Shubin
2018-01-18
Molecular acidity of trivalent rare-earth metal cations in aqueous solution is an important factor dedicated to the efficiency of their extraction and separation processes. In this work, the aqueous acidity of these metal ions has been quantitatively investigated using a few theoretical approaches. Our computational results expressed in terms of pK a values agree well with the tetrad effect of trivalent rare-earth ions extensively reported in the extraction and separation of these elements. Strong linear relationships have been observed between the acidity and quantum electronic descriptors such as the molecular electrostatic potential on the acidic nucleus and the sum of the valence natural atomic orbitals energies of the dissociating proton. Making use of the predicted pK a values, we have also predicted the major ionic forms of these species in the aqueous environment with different pH values, which can be employed to rationalize the behavior difference of different rare-earth metal cations during the extraction process. Our present results should provide needed insights not only for the qualitatively understanding about the extraction and separation between yttrium and lanthanide elements but also for the prediction of novel and more efficient rare-earth metal extractants in the future.
Theoretical study of the alkaline-earth metal superoxides BeO2 through SrO2
NASA Technical Reports Server (NTRS)
Bauschlicher, Charles W., Jr.; Partridge, Harry; Sodupe, Mariona; Langhoff, Stephen R.
1992-01-01
Three competing bonding mechanisms have been identified for the alkaline-earth metal superoxides: these result in a change in the optimal structure and ground state as the alkaline-earth metal becomes heavier. For example, BeO2 has a linear 3Sigma(-)g ground-state structure, whereas both CaO2 and SrO2 have C(2v)1A1 structures. For MgO2, the theoretical calculations are less definitive, as the 3A2 C(2v) structure is computed to lie only about 3 kcal/mol above the 3Sigma(-)g linear structure. The bond dissociation energies for the alkaline-earth metal superoxides have been computed using extensive Gaussian basis sets and treating electron correlation at the modified coupled-pair functional or coupled-cluster singles and doubles level with a perturbational estimate of the triple excitations.
Alkaline earth metal doped tin oxide as a novel oxygen storage material
DOE Office of Scientific and Technical Information (OSTI.GOV)
Dong, Qiang, E-mail: dong@tagen.tohoku.ac.jp; Yin, Shu; Yoshida, Mizuki
2015-09-15
Alkaline earth metal doped tin oxide (SnO{sub 2}) hollow nanospheres with a diameter of 50 nm have been synthesized successfully via a facial solvothermal route in a very simple system composed of only ethanol, acetic acid, SnCl{sub 4}·5H{sub 2}O and A(NO{sub 3}){sub 2}·xH{sub 2}O (A = Mg, Ca, Sr, Ba). The synthesized undoped SnO{sub 2} and A-doped SnO{sub 2} hollow nanospheres were characterized by the oxygen storage capacity (OSC), X-ray diffraction, transmission electron microscopy and the Brunauer–Emmet–Teller (BET) technique. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. The incorporation of alkaline earth metal ion into tinmore » oxide greatly enhanced the thermal stability and OSC. Especially, Ba-doped SnO{sub 2} hollow nanospheres calcined at 1000 °C for 20 h with a BET surface area of 61 m{sup 2} g{sup −1} exhibited the considerably high OSC of 457 μmol-O g{sup −1} and good thermal stability. Alkaline earth metal doped tin oxide has the potential to be a novel oxygen storage material.« less
Wei, Tao; Jin, Fei; Guan, Runnan; Huang, Jing; Chen, Muqing; Li, Qunxiang; Yang, Shangfeng
2018-02-11
Rare-earth metals have been mostly entrapped into fullerene cages to form endohedral clusterfullerenes, whereas non-Group-3 transition metals that can form clusterfullerenes are limited to titanium (Ti) and vanadium (V), and both are exclusively entrapped within an I h -C 80 cage. Non-Group-3 transition-metal-containing endohedral fullerenes based on a C 80 cage with D 5h symmetry, V x Sc 3-x N@D 5h -C 80 (x=1, 2), have now been synthesized, which exhibit two variable cluster compositions. The molecular structure of VSc 2 N@D 5h -C 80 was unambiguously determined by X-ray crystallography. According to a comparative study with the reported Ti- and V-containing clusterfullerenes based on a I h -C 80 cage and the analogous D 5h -C 80 -based metal nitride clusterfullerenes containing rare-earth metals only, the decisive role of the non-Group-3 transition metal on the formation of the corresponding D 5h -C 80 -based clusterfullerenes is unraveled. © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
S-CNN: Subcategory-aware convolutional networks for object detection.
Chen, Tao; Lu, Shijian; Fan, Jiayuan
2017-09-26
The marriage between the deep convolutional neural network (CNN) and region proposals has made breakthroughs for object detection in recent years. While the discriminative object features are learned via a deep CNN for classification, the large intra-class variation and deformation still limit the performance of the CNN based object detection. We propose a subcategory-aware CNN (S-CNN) to solve the object intra-class variation problem. In the proposed technique, the training samples are first grouped into multiple subcategories automatically through a novel instance sharing maximum margin clustering process. A multi-component Aggregated Channel Feature (ACF) detector is then trained to produce more latent training samples, where each ACF component corresponds to one clustered subcategory. The produced latent samples together with their subcategory labels are further fed into a CNN classifier to filter out false proposals for object detection. An iterative learning algorithm is designed for the joint optimization of image subcategorization, multi-component ACF detector, and subcategory-aware CNN classifier. Experiments on INRIA Person dataset, Pascal VOC 2007 dataset and MS COCO dataset show that the proposed technique clearly outperforms the state-of-the-art methods for generic object detection.
High-pressure metallization of FeO and implications for the earth's core
NASA Technical Reports Server (NTRS)
Knittle, Elise; Jeanloz, Raymond
1986-01-01
The phase diagram of FeO has been experimentally determined to pressures of 155 GPa and temperatures of 4000 K using shock-wave and diamond-cell techniques. A metallic phase of FeO is observed at pressures greater than 70 GPa and temperatures exceeding 1000 K. The metallization of FeO at high pressures implies that oxygen can be present as the light alloying element of the earth's outer core, in accord with the geochemical predictions of Ringwood (1977 and 1979). The high pressures necessary for this metallization suggest that the core has acquired its composition well after the initial stages of the earth's accretion. Direct experimental observations at elevated pressures and temperatures indicate that core-forming alloy can react chemically with oxides such as those forming the mantle. The core and mantle may never have reached complete chemical equilibrium, however. If this is the case, the core-mantle boundary is likely to be a zone of active chemical reactions.
40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... chlorosulfonic acid sulfation subcategory. 417.130 Section 417.130 Protection of Environment ENVIRONMENTAL... CATEGORY Chlorosulfonic Acid Sulfation Subcategory § 417.130 Applicability; description of the chlorosulfonic acid sulfation subcategory. The provisions of this subpart are applicable to discharges resulting...
40 CFR 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... chlorosulfonic acid sulfation subcategory. 417.130 Section 417.130 Protection of Environment ENVIRONMENTAL... CATEGORY Chlorosulfonic Acid Sulfation Subcategory § 417.130 Applicability; description of the chlorosulfonic acid sulfation subcategory. The provisions of this subpart are applicable to discharges resulting...
40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...
40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...
40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...
40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...
40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...
40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...
40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...
40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...
40 CFR 428.20 - Applicability; description of the emulsion crumb rubber subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... emulsion crumb rubber subcategory. 428.20 Section 428.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS RUBBER MANUFACTURING POINT SOURCE CATEGORY Emulsion Crumb Rubber Subcategory § 428.20 Applicability; description of the emulsion crumb rubber subcategory...
40 CFR 428.20 - Applicability; description of the emulsion crumb rubber subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... emulsion crumb rubber subcategory. 428.20 Section 428.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS RUBBER MANUFACTURING POINT SOURCE CATEGORY Emulsion Crumb Rubber Subcategory § 428.20 Applicability; description of the emulsion crumb rubber subcategory...
40 CFR 427.70 - Applicability; description of the asbestos floor tile subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asbestos floor tile subcategory. 427.70 Section 427.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Floor Tile Subcategory § 427.70 Applicability; description of the asbestos floor tile subcategory...
40 CFR 427.70 - Applicability; description of the asbestos floor tile subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asbestos floor tile subcategory. 427.70 Section 427.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Floor Tile Subcategory § 427.70 Applicability; description of the asbestos floor tile subcategory...
40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...
40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...
40 CFR 421.30 - Applicability: Description of the secondary aluminum smelting subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... secondary aluminum smelting subcategory. 421.30 Section 421.30 Protection of Environment ENVIRONMENTAL... CATEGORY Secondary Aluminum Smelting Subcategory § 421.30 Applicability: Description of the secondary aluminum smelting subcategory. The provisions of this subpart are applicable to discharges resulting from...
40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...
40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...
40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...
40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...
40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...
40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 421.90 - Applicability: Description of the metallurgical acid plants subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... metallurgical acid plants subcategory. 421.90 Section 421.90 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Metallurgical Acid Plants Subcategory § 421.90 Applicability: Description of the metallurgical acid plants subcategory. The provisions of this subpart apply to process wastewater discharges...
40 CFR 406.50 - Applicability; description of the normal rice milling subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... normal rice milling subcategory. 406.50 Section 406.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Normal Rice Milling Subcategory § 406.50 Applicability; description of the normal rice milling subcategory. The...
40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 415.230 - Applicability; description of the aluminum fluoride production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... aluminum fluoride production subcategory. 415.230 Section 415.230 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.230 Applicability; description of the aluminum fluoride production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.230 - Applicability; description of the aluminum fluoride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... aluminum fluoride production subcategory. 415.230 Section 415.230 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.230 Applicability; description of the aluminum fluoride production subcategory. This subpart applies to discharges to waters of the United States...
40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 417.120 - Applicability; description of the sulfamic acid sulfation subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... sulfamic acid sulfation subcategory. 417.120 Section 417.120 Protection of Environment ENVIRONMENTAL... CATEGORY Sulfamic Acid Sulfation Subcategory § 417.120 Applicability; description of the sulfamic acid sulfation subcategory. The provisions of this subpart are applicable to discharges resulting from operations...
40 CFR 417.120 - Applicability; description of the sulfamic acid sulfation subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... sulfamic acid sulfation subcategory. 417.120 Section 417.120 Protection of Environment ENVIRONMENTAL... CATEGORY Sulfamic Acid Sulfation Subcategory § 417.120 Applicability; description of the sulfamic acid sulfation subcategory. The provisions of this subpart are applicable to discharges resulting from operations...
40 CFR 465.10 - Applicability; description of the steel basis material subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... steel basis material subcategory. 465.10 Section 465.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COIL COATING POINT SOURCE CATEGORY Steel Basis Material Subcategory § 465.10 Applicability; description of the steel basis material subcategory...
40 CFR 465.10 - Applicability; description of the steel basis material subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... steel basis material subcategory. 465.10 Section 465.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COIL COATING POINT SOURCE CATEGORY Steel Basis Material Subcategory § 465.10 Applicability; description of the steel basis material subcategory...
40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...
40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...
40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...
40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...
40 CFR 415.160 - Applicability; description of the sodium chloride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... sodium chloride production subcategory. 415.160 Section 415.160 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Chloride Production Subcategory § 415.160 Applicability; description of the sodium chloride production subcategory. The provisions of this subpart are applicable to discharges resulting from...
40 CFR 415.10 - Applicability; description of the aluminum chloride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... aluminum chloride production subcategory. 415.10 Section 415.10 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Chloride Production Subcategory § 415.10 Applicability; description of the aluminum chloride production subcategory. The provisions of this subpart are applicable to discharges and...
40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...
40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...
40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...
40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...
40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...
40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of asbestos and...
40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...
40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of asbestos and...
40 CFR 415.550 - Applicability; description of the sodium fluoride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... sodium fluoride production subcategory. 415.550 Section 415.550 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Fluoride Production Subcategory § 415.550 Applicability; description of the sodium fluoride production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.550 - Applicability; description of the sodium fluoride production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... sodium fluoride production subcategory. 415.550 Section 415.550 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Fluoride Production Subcategory § 415.550 Applicability; description of the sodium fluoride production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 471.90 - Applicability; description of the zirconium-hafnium forming subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... zirconium-hafnium forming subcategory. 471.90 Section 471.90 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Zirconium-Hafnium Forming Subcategory § 471.90 Applicability; description of the zirconium-hafnium forming subcategory. This subpart applies to discharges of pollutants to waters of the...
40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...
40 CFR 415.380 - Applicability; description of the ferric chloride production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... ferric chloride production subcategory. 415.380 Section 415.380 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Ferric Chloride Production Subcategory § 415.380 Applicability; description of the ferric chloride production subcategory. The provisions of this subpart are applicable to discharges and to the...
NASA Astrophysics Data System (ADS)
Shahar, Anat; Ziegler, Karen; Young, Edward D.; Ricolleau, Angele; Schauble, Edwin A.; Fei, Yingwei
2009-10-01
Stable isotope fractionation amongst phases comprising terrestrial planets and asteroids can be used to elucidate planet-forming processes. To date, the composition of the Earth's core remains largely unknown though cosmochemical and geophysical evidence indicates that elements lighter than iron and nickel must reside there. Silicon is often cited as a light element that could explain the seismic properties of the core. The amount of silicon in the core, if any, can be deduced from the difference in 30Si/ 28Si between meteorites and terrestrial rocks if the Si isotope fractionation between silicate and Fe-rich metal is known. Recent studies (e.g., [Georg R.B., Halliday A.N., Schauble E.A., Reynolds B.C., 2007. Silicon in the Earth's core. Nature 447 (31), 1102-1106.]; [Fitoussi, C., Bourdon, B., Kleine, T., Oberli, F., Reynolds, B. C., 2009. Si isotope systematics of meteorites and terrestrial peridotites: implications for Mg/Si fractionation in the solar nebula and for Si in the Earth's core. Earth Planet. Sci. Lett. 287, 77-85.]) showing (sometimes subtle) differences between 30Si/ 28Si in meteorites and terrestrial rocks suggest that Si missing from terrestrial rocks might be in the core. However, any conclusion based on Earth-meteorite comparisons depends on the veracity of the 30Si/ 28Si fractionation factor between silicates and metals at appropriate conditions. Here we present the first direct experimental evidence that silicon isotopes are not distributed uniformly between iron metal and rock when equilibrated at high temperatures. High-precision measurements of the silicon isotope ratios in iron-silicon alloy and silicate equilibrated at 1 GPa and 1800 °C show that Si in silicate has higher 30Si/ 28Si than Si in metal, by at least 2.0‰. These findings provide an experimental foundation for using isotope ratios of silicon as indicators of terrestrial planet formation processes. They imply that if Si isotope equilibrium existed during segregation of Earth
40 CFR 425.60 - Applicability; description of the through-the-blue subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... through-the-blue subcategory. 425.60 Section 425.60 Protection of Environment ENVIRONMENTAL PROTECTION... Through-the-Blue Subcategory § 425.60 Applicability; description of the through-the-blue subcategory. The... processes raw or cured cattle or cattle-like hides through the blue tanned state by hair pulp unhairing and...
Composite nanoparticles containing rare earth metal and methods of preparation thereof
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kandapallil, Binil Itty Ipe; Krishnan, Lakshmi; Johnson, Francis
The present invention is directed to composite nanoparticles comprising a metal, a rare earth element, and, optionally, a complexing ligand. The invention is also directed to composite nanoparticles having a core-shell structure and to processes for preparation of composite nanoparticles of the invention.
Metallic rare-earth silicide nanowires on silicon surfaces.
Dähne, Mario; Wanke, Martina
2013-01-09
The formation, atomic structure, and electronic properties of self-assembled rare-earth silicide nanowires on silicon surfaces were studied by scanning tunneling microscopy and angle-resolved photoelectron spectroscopy. Metallic dysprosium and erbium silicide nanowires were observed on both the Si(001) and Si(557) surfaces. It was found that they consist of hexagonal rare-earth disilicides for both surface orientations. On Si(001), the nanowires are characterized by a one-dimensional band structure, while the electronic dispersion is two-dimensional for the nanowires formed on Si(557). This behavior is explained by the different orientations of the hexagonal c axis of the silicide leading to different conditions for the carrier confinement. By considering this carrier confinement it is demonstrated how the one-dimensional band structure of the nanowires on Si(001) can be derived from the two-dimensional one of the silicide monolayer on Si(111).
Code of Federal Regulations, 2012 CFR
2012-07-01
... 40 Protection of Environment 30 2012-07-01 2012-07-01 false [Reserved] 421.277 Section 421.277 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth Metals Subcategory § 421.277...
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 28 2010-07-01 2010-07-01 true [Reserved] 421.277 Section 421.277 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth Metals Subcategory § 421.277...
Code of Federal Regulations, 2014 CFR
2014-07-01
... 40 Protection of Environment 29 2014-07-01 2012-07-01 true [Reserved] 421.277 Section 421.277 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth Metals Subcategory § 421.277...
Code of Federal Regulations, 2013 CFR
2013-07-01
... 40 Protection of Environment 30 2013-07-01 2012-07-01 true [Reserved] 421.277 Section 421.277 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth Metals Subcategory § 421.277...
Code of Federal Regulations, 2011 CFR
2011-07-01
... 40 Protection of Environment 29 2011-07-01 2009-07-01 true [Reserved] 421.277 Section 421.277 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY Primary Rare Earth Metals Subcategory § 421.277...
Code of Federal Regulations, 2013 CFR
2013-07-01
... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...
Code of Federal Regulations, 2014 CFR
2014-07-01
... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...
Code of Federal Regulations, 2012 CFR
2012-07-01
... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...
Code of Federal Regulations, 2011 CFR
2011-07-01
... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are applicable to...
Code of Federal Regulations, 2010 CFR
2010-07-01
... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are applicable to...
40 CFR 415.430 - Applicability; description of the iodine production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... iodine production subcategory. 415.430 Section 415.430 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Iodine Production Subcategory § 415.430 Applicability; description of the iodine production... iodine. ...
40 CFR 415.430 - Applicability; description of the iodine production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... iodine production subcategory. 415.430 Section 415.430 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Iodine Production Subcategory § 415.430 Applicability; description of the iodine production... iodine. ...
40 CFR 457.10 - Applicability; description of the commercial manufacture of explosives subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... commercial manufacture of explosives subcategory. 457.10 Section 457.10 Protection of Environment... SOURCE CATEGORY Manufacture of Explosives Subcategory § 457.10 Applicability; description of the commercial manufacture of explosives subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 417.160 - Applicability; description of the manufacture of liquid detergents subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... manufacture of liquid detergents subcategory. 417.160 Section 417.160 Protection of Environment ENVIRONMENTAL... CATEGORY Manufacture of Liquid Detergents Subcategory § 417.160 Applicability; description of the manufacture of liquid detergents subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.50 - Applicability: Description of the primary electrolytic copper refining subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary electrolytic copper refining subcategory. 421.50 Section 421.50 Protection of Environment... POINT SOURCE CATEGORY Primary Electrolytic Copper Refining Subcategory § 421.50 Applicability: Description of the primary electrolytic copper refining subcategory. The provisions of this subpart apply to...
40 CFR 421.50 - Applicability: Description of the primary electrolytic copper refining subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary electrolytic copper refining subcategory. 421.50 Section 421.50 Protection of Environment... POINT SOURCE CATEGORY Primary Electrolytic Copper Refining Subcategory § 421.50 Applicability: Description of the primary electrolytic copper refining subcategory. The provisions of this subpart apply to...
40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...
40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... other calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment... SOURCE CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.100 - Applicability; description of the remote Alaskan shrimp processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... remote Alaskan shrimp processing subcategory. 408.100 Section 408.100 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Remote Alaskan Shrimp Processing Subcategory § 408.100 Applicability; description of the remote Alaskan shrimp processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.100 - Applicability; description of the remote Alaskan shrimp processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... remote Alaskan shrimp processing subcategory. 408.100 Section 408.100 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Remote Alaskan Shrimp Processing Subcategory § 408.100 Applicability; description of the remote Alaskan shrimp processing subcategory. The provisions of this subpart are applicable...
40 CFR 408.170 - Applicability; description of the Alaskan mechanized salmon processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Alaskan mechanized salmon processing subcategory. 408.170 Section 408.170 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Mechanized Salmon Processing Subcategory § 408.170 Applicability; description of the Alaskan mechanized salmon processing subcategory. The provisions of this subpart are...
40 CFR 408.170 - Applicability; description of the Alaskan mechanized salmon processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... Alaskan mechanized salmon processing subcategory. 408.170 Section 408.170 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Mechanized Salmon Processing Subcategory § 408.170 Applicability; description of the Alaskan mechanized salmon processing subcategory. The provisions of this subpart are...
40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...
40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...
40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...
40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...
40 CFR 413.40 - Applicability: Description of the anodizing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability: Description of the anodizing subcategory. 413.40 Section 413.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ELECTROPLATING POINT SOURCE CATEGORY Anodizing Subcategory...
40 CFR 461.10 - Applicability; description of the cadmium subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the cadmium subcategory. 461.10 Section 461.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Cadmium Subcategory...
Rare earth element recycling from waste nickel-metal hydride batteries.
Yang, Xiuli; Zhang, Junwei; Fang, Xihui
2014-08-30
With an increase in number of waste nickel-metal hydride batteries, and because of the importance of rare earth elements, the recycling of rare earth elements is becoming increasingly important. In this paper, we investigate the effects of temperature, hydrochloric acid concentration, and leaching time to optimize leaching conditions and determine leach kinetics. The results indicate that an increase in temperature, hydrochloric acid concentration, and leaching time enhance the leaching rate of rare earth elements. A maximum rare earth elements recovery of 95.16% was achieved at optimal leaching conditions of 70°C, solid/liquid ratio of 1:10, 20% hydrochloric acid concentration, -74μm particle size, and 100min leaching time. The experimental data were best fitted by a chemical reaction-controlled model. The activation energy was 43.98kJ/mol and the reaction order for hydrochloric acid concentration was 0.64. The kinetic equation for the leaching process was found to be: 1-(1-x)(1/3)=A/ρr0[HCl](0.64)exp-439,8008.314Tt. After leaching and filtration, by adding saturated oxalic solution to the filtrate, rare earth element oxalates were obtained. After removing impurities by adding ammonia, filtering, washing with dilute hydrochloric acid, and calcining at 810°C, a final product of 99% pure rare earth oxides was obtained. Copyright © 2014 Elsevier B.V. All rights reserved.
40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...
40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...
40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...
40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.
Code of Federal Regulations, 2010 CFR
2010-07-01
... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.
Code of Federal Regulations, 2011 CFR
2011-07-01
... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...
40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.
Code of Federal Regulations, 2014 CFR
2014-07-01
... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...
40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.
Code of Federal Regulations, 2012 CFR
2012-07-01
... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...
40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.
Code of Federal Regulations, 2013 CFR
2013-07-01
... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...