Treatment of converter slag

Details Treatment of converter slag Treatment of converter slag

1973-12-26

1976-10-05

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 23, 75 24, 75 82, 75 88, C22B 1500

Patent

active

039842355

ABSTRACT:
A process for the production of copper from raw materials containing sulphur, zinc and more than 0.2% Ni calculated on the copper content. The material is melted to matte and the matte converted to white metal, whereafter the white metal is converted to copper and the zinc present in the slag obtained from the matte is fumed off in a furnace therefore. The slag formed during the conversion of matte to white metal is removed and treated in a separate furnace with an amount of copper, iron or nickel sulphide material sufficient to lower the copper content to less than 2%, whereafter the treated slag obtained is charged to the slag fuming surface.

REFERENCES:
patent: 1003051 (1911-09-01), Korda
patent: 2295219 (1942-09-01), Kalling et al.
patent: 2438911 (1948-04-01), Gronningsaeter
patent: 3099553 (1963-07-01), Aamot
patent: 3506435 (1970-04-01), Themelis et al.

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