Method of recovering metals from liquid slag

Details Method of recovering metals from liquid slag Method of recovering metals from liquid slag

1985-01-02

1986-05-13

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 11, 75 14, C21B 1312, C22B 400

Patent

active

045884366

ABSTRACT:
Recovery of oxide or silicate-bound metals from liquid slag, in metallic or sulphidic form is carried out by reduction with carbonaceous reducing agent, the thermal energy required to maintain the temperature and perform the reduction and sulphidization being provided by blowing gas preheated in a plasma generator below the surface of the slag bath. The vapor of volatile metals is condensed in known manner in a condensor, the non-volatile metals and sulphides formed being collected in the form of molten drops which are allowed to settle out of the slag.

REFERENCES:
patent: 3891428 (1975-06-01), Yordanov et al.
patent: 3892559 (1975-07-01), Quarm
patent: 3970290 (1976-07-01), Santen et al.
patent: 4131451 (1978-12-01), Lakernik et al.

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