Method for producing easily volatile metals, such as zinc, lead,

Details Method for producing easily volatile metals, such as zinc, lead, Method for producing easily volatile metals, such as zinc, lead,

1993-05-13

1995-04-04

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75 103, 75637, 75658, 75669, 75670, 75696, C22B 1904

Patent

active

054033802

ABSTRACT:
The invention relates to a method for producing zinc, cadmium, lead and other easily volatile metals from sulfidic raw materials in a pyrometallurgical process. In the method, zinc sulfide concentrate is fed into molten copper in atmospheric conditions, at a temperature of 1,450.degree.-1,800.degree. C., so that the zinc, lead and cadmium are volatilized, and the iron and copper remain in the molten metal or in the metal sulfide matte created in the furnace.

REFERENCES:
patent: 3463630 (1969-08-01), Todd
patent: 4334918 (1982-06-01), Warner
patent: 4372780 (1983-02-01), Madelin

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