Method of producing blister copper

Details Method of producing blister copper Method of producing blister copper

1977-03-04

1979-03-13

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 1506

Patent

active

041440552

ABSTRACT:
A method of producing blister copper comprising smelting sulphidic copper raw material in a rotary furnace with an inclined rotation axis, in presence of oxygen and slag formers charged simultaneously with the copper raw material. The method comprises discontinuing the oxygen charge when at least 75% of the copper raw material has been charged and treating the obtained matte and slag with a reduction agent and then transferring the matte and the slag together to a holding furnace in which the matte and the slag are separated and transferring the matte in the holding furnace to a converter where it is converted to blister copper.

REFERENCES:
patent: 3666440 (1972-05-01), Kono et al.
patent: 3682623 (1972-08-01), Dierckx et al.
patent: 3890139 (1975-06-01), Suzuki et al.
patent: 4006010 (1977-02-01), Rajcevic et al.
patent: 4032327 (1977-06-01), Donaldson et al.

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