Method of carbothermically producing aluminum

Details Method of carbothermically producing aluminum Method of carbothermically producing aluminum

1981-03-06

1983-07-19

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 2102

Patent

active

043941672

ABSTRACT:
A method of producing an aluminum metal from alumina, silica and iron oxide bearing materials by mixing the coal and bringing the mixtures to the temperature in the range of 600.degree. to 900.degree. C. in order to make the alumina bearing coked briquettes. Then, the coked briquettes are brought to the temperature in the range of 2,000.degree. to 2,100.degree. C. to produce aluminum, silicon and iron containing alloys. The alloys are scrubbed by molten lead spray directly after the alloys formation, and are converted to lead-aluminum alloy. An aluminum is separated from lead by liquation and purified by fractional distillation.

REFERENCES:
patent: 3234008 (1966-02-01), Johnson
patent: 3661561 (1972-05-01), Frey, Jr. et al.
patent: 3661562 (1972-05-01), Seth et al.
patent: 3836357 (1974-09-01), Dewing
patent: 4046558 (1977-09-01), Das
patent: 4053303 (1977-10-01), Cochran et al.

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