Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1983-11-02
1985-06-04
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 23, 75 73, 75 86, C22B 1500
Patent
active
045212457
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 dispersed mixture of highly basic molten slag containing copper and zinc oxides, metallic copper and white matte. The initial concentrates and silicate fluxes are taken in ratios permitting production of highly basic slag, whereupon 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 vapor-gas mixture containing vapors of zinc, metallic copper and depleted highly basic molten slag containing not more than 18 percent by weight of silicon dioxide. The resultant vapor-gas mixture is then subjected to oxidation with a view to producing and collecting zinc oxide.
REFERENCES:
patent: 3563726 (1971-02-01), Elvander
patent: 3892560 (1975-07-01), Nermes
patent: 3948639 (1976-04-01), Nermes
patent: 4300949 (1981-11-01), Ushakov
patent: 4389243 (1983-06-01), Jaquay
patent: 4415356 (1983-11-01), Victorovich
The Development of Copper Ore Deposits and Production of Copper in Turkey (Mehmet Yasar Ethem) (German-English) pp. 147-197.
Development, Principles and Applications of the Kivcet Process of Cyclone Smelting of Contaminated Copper Ores with the Use of Pure Oxygen (Gerhard Melcher et al.) (German-English) pp. 309-369.
Nonferrous Metallurgy Abroad (Russian-English) pp. 25-29.
Physico-Chemical Principles of Kivcet Smelting Process with Reference to Copper-Zinc Concentrate Processing (I. M. Cherednik et al.) (Russian-English) pp. 24-27.
Kuur Vyacheslav P.
Panchenko Anatoly I.
Sannikov Jury I.
Sychev Anatoly P.
Toguzov Mels Z.
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