C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/280, 53/314
C22B 19/36 (2006.01) C22B 5/14 (2006.01) C22B 15/00 (2006.01) C22B 15/02 (2006.01) C22B 19/34 (2006.01)
Patent
CA 1218238
METHOD OF PROCESSING SULPHIDE COPPER- AND/OR SULPHIDE COPPER-ZINC CONCENTRATES ABSTRACT A method of processing sulphide copper- and/or sulphide copper-zinc concentrates comprises flash smelting of said concentrates and basic silicate fluxes in the presence of oxygen with the resultant formation of a dis- persed mixture of highly basic molten slag containing cop- per and zinc oxides, metallic copper and white matte. The initial concentrates and silicate fluxes are taken in ratios permitting production of highly basic slag, where- upon copper and zinc oxides contained in the highly basic molten slag are reduced by means of a solid carbonaceous material with the resultant formation of a vapour-gas mixture containing vapours of zinc, metallic copper and depleted highly basic molten slag containing not more than 18 percent by weight of silicon dioxide. The resultant vapour-gas mixture is then subjected to oxidation with a view to producing and collecting zinc oxide.
440777
Kuur Vyacheslav P.
Panchenko Anatoly I.
Sannikov Jury I.
Sychev Anatoly P.
Toguzov Mels Z.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Vsesojuzny Nauchno-Issledovatelsky Gorno-Metallurgichesky Instit
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