Extractive metallurgy copper

In metallurgy, hydrogen sulfide is used to precipitate copper sulfide from nickel—copper-containing ore leach solutions in Alberta, Canada, or to precipitate nickel and cobalt sulfides from sulfuric acid leaching oflaterite ores in Moa Bay, Cuba (120) (see Metallurgy, extractive metallurgy). 

A. K. Biswas and W. G. Davenport, Extractive Metallurgy of Copper Pergamon Press, New York, 1980. 

J. C. Yannopoulos and J. C. Agarwal, eds., Extractive Metallurgy of Copper (2 Vols.), Proc. of International Symposium, Las Vegas, 1976, AIME, New York, 1976. 

V. H. Aprahamian and D. G. Demopoulos, The Solution Chemistry and Solvent Extraction Behaviour of copper, iron, nickel, zinc, lead, tin, Ag, arsenic, antimony, bismuth, selenium and tellurium in Acid Chloride Solutions Reviewed from the Standpoint of PGM Refining, Mineral Processing and Extractive Metallurgy Review, Vol. 14, p. 143,1995. 

Duyvesteyn, W. P. C. Sabacky, B. J. Ammonia Leaching Process for Escondida Copper Concentrates (Reprinted from Extractive Metallurgy of Copper, Nickel, and Cobalt. Vol. 1, 1993). Trans. Inst. Min. Metall. Sect. C-Miner. Process. Extr. Metall. 1995, 104, C125-C140. 

Biswas, A. K. Davenport, W. G. International Series in Materials Science and Technology, Vol. 20 Extractive Metallurgy of Copper, Pergamon, Oxford, Engl. 1976. 

The most important applications of hydrogen sulfide involve the production of sodium sulfide and other inorganic sulfides. Hydrogen sulfide obtained as a by-product often is converted into sulfuric acid. It also is used in organic synthesis to make thiols or mercaptans. Other applications are in metallurgy for extracting nickel, copper, and cobalt as sulfides from their minerals and in classical qualitative analytical methods for precipitation of many metals (see Reactions). It also is used in producing heavy water for nuclear reactors. 

Black copper - [METALLURGY - EXTRACTIVE METALLURGY] (Vol 16) - pECYCLING - METALS - NONFERROUS METALS] (Vol 20)... 

Solvent extraction is a well-established method of separation in the field of extractive metallurgy. First applied to the extraction of uranium for nuclear purposes in the early 1940s, the technique currently now finds widespread use in the recovery of uranium, copper, zinc, cobalt, nickel,... 

In extractive metallurgy, for instance, certain low-grade copper ores could be leached with acid or ammoniacal solution advantageously in the fluidized state cupriferous iron ores, after sulfatizing roasting, could have their copper values recovered selectively by leaching with a very dilute acid (Yu et al., 1964) ... 

Refs. [i] Pletcher D, Walsh PC (1990) Industrial electrochemistry, 2nd edn. Chapman and Hall, London [ii] Davenport WG, King M, Schals-ing M, Biswas AK (2002) Extractive metallurgy of copper, 4th edn. Elsevier, Oxford... 

Davenport, W.G., King, M., Schlesinger, M. and Biswas, A.K. (2002) Extractive Metallurgy of Copper, 4th Edition. Elsevier Science Ltd., Oxford, England, 219. www.elsevier.com... 

These sources are detailed in the book, but our main subject is production of sulfuric acid from S02(g). Readers interested in smelting and roasting offgases might enjoy our other books Extractive Metallurgy of Copper (2002) and Flash Smelting (2003). 

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