Aluminum purification system

Details Aluminum purification system Aluminum purification system

1979-01-31

1980-08-05

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 10R, C22D 312

Patent

active

042160103

ABSTRACT:
A method for extracting aluminum of substantial purity from furnace products resulting from carbothermic reduction of alumina-bearing ores and contaminated with up to about 30 weight percent of aluminum carbide is disclosed. The method involves contacting the furnace product with a high alumina-containing molten slag in the substantial absence of reactive carbon, so as to cause the alumina-containing slag to react with the aluminum carbide, thereby diminishing the aluminum carbide content of the furnace product.

REFERENCES:
patent: 3068092 (1962-12-01), Menegoz
patent: 3971653 (1976-07-01), Cochran

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