331492 - Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) . This U.S. industry comprises establishments primarily engaged in (1) alloying purchased nonferrous metals and/or (2) recovering nonferrous metals from scrap.

List of Smelters and Refiners Updated March 28, 2014 Page 1 of 7 List of Smelters and Refiners This list contains facilities verified by the Conflict-Free Sourcing Initiative (CFSI) as "smelters" or "refiners" which have been reported by BlackBerry suppliers as processing gold, tantalum, tin, and/or tungsten

40+ items · 85 Aluminum Smelting and Refining (Secondary) Companies in the United States. Search or browse our list of Aluminum Smelting and Refining (Secondary) companies by category or location.

The four major steps in the production of marketable copper are mining, concentrating, smelting, and refining. In a few instances, however, leaching takes the place of concentrating, smelting, and refining. At present, although considerable leaching and direct-smelting ores are produced, the bulk of the copper ore mined is concentrated. The milling of copper ores as practiced in the larger ...

Jan 19, 2013 · Methods of Copper Smelter. Based on the source of copper, copper smelter method is divided into two categories: primary copper smelter and secondary copper smelter. If the source of copper material came from earth (ore), then it is primary copper smelter. But, if the source came from scrap (pipe, wire, bushing, bearing, etc), then it is ...

Copper Smelting and Refining (Secondary) in the United States: 8 companies. Find companies by category or location at Amfibi. Check and update your company profile or .

Smelting means the chemical reduction of metal compounds to its elemental or alloyed form through processing in high-temperature (greater than 980 C) furnaces including, but not limited to, blast furnaces, reverberatory furnaces, rotary furnaces, and electric furnaces.

Secondary copper smelters and refiners are generally found close to their source of scrap materials, such as urban areas, or near inexpensive transportation in the northeastern and east-north central states. At pres- ent, the number of secondary copper smelting and refining plants is seven.

The waste copper smelter dust (CSD) is a rich secondary resource for copper as shown by the chemical composition of the South African Palabora coppers smelter .

The present paper provides a brief overview of copper smelting in Southern Africa. Ancient History of Copper Smelting Smelting history goes back at least 6000 years to the copper smelters of the Timna valley near Eilat in Israel. Copper is the world's oldest metal .

The principal pollutant emitted from secondary copper smelting activities is particulate matter. As is characteristic of secondary metallurgical industries, pyrometallurgical processes used to separate or refine the desired metal, such as the burning of insulation from copper wire, result in emissions of metal oxides and unburned insulation.

Secondary copper smelting plants and cable treatment companies require high-quality input in order to work efficiently. titech Sekundärkupferhütten und Kabelverarbeitungsunternehmen benötigen qualitativ hochwertige Einsatzstoffe, um effizient arbeiten zu können.

smelting process that is easy to operate. It can be used for a range of applications including primary and secondary copper smelting and copper converting, primary and secondary lead smelting, primary nickel smelting and converting, and tin, zinc and precious metals smelting. The high intensity of .

Table 17B. U.S. Copper Scrap and Copper Alloy Consumption (1995-2011) .....88 Table 18. Estimated Secondary By-products, by Plant-Type Sector.....89 CHAPTER 3 TABLES Table 19. Particulate Emission Factors for Furnaces Used in Secondary Copper Smelting

Plants engaged in the recovery of tin through secondary smelting and refining, as well as by chemical processes, are included in this industry. Snapshot SIC Code 3341 - Secondary Smelting and Refining of Nonferrous Metals is a final level code of the " Manufacturing " Division.

Secondary Smelting, Refining, and Alloying of Copper 1997EconomicCensus Manufacturing IndustrySeries 1997 IssuedNovember1999 EC97M-3314E U.S.DepartmentofCommerce WilliamM.Daley, Secretary RobertL.Mallett, DeputySecretary Economics andStatistics Administration RobertJ.Shapiro, UnderSecretaryfor EconomicAffairs U.S.CENSUSBUREAU KennethPrewitt ...

The smelting of slags and residues The secondary copper smelter's raw material usually contains copper in the metallic or oxidised form, and whereas much of the better grades of metallic copper can be used for casting shapes, lesser qualities are adequate for low grade ingot production and as anode copper for electrolytic refining.

The waste copper smelter dust (CSD) is a rich secondary resource for copper as shown by the chemical composition of the South African Palabora coppers smelter .

Secondary Smelting, Refining, and Alloying of Copper 1997EconomicCensus Manufacturing IndustrySeries 1997 IssuedNovember1999 EC97M-3314E U.S.DepartmentofCommerce WilliamM.Daley, Secretary RobertL.Mallett, DeputySecretary Economics andStatistics Administration RobertJ.Shapiro, UnderSecretaryfor EconomicAffairs U.S.CENSUSBUREAU KennethPrewitt ...

DEVELOPMENTS IN COPPER SMELTING AND REFINING A DISCUSSION OF CHANGES IN COPPER SMELTING AND REFINING INDUSTRY IN THE LAST 40 YEARS AND SOME IDEAS LOOKING INTO THE FUTURE Dr. Gerardo R.F. Alvear F. Technology Manager – Smelting & Refining ... (Includes Secondary Production)