Carbothermic production of aluminum

Details Carbothermic production of aluminum Carbothermic production of aluminum

1974-12-09

1976-07-27

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 68A, C22D 702

Patent

active

039716538

ABSTRACT:
A process for producing aluminum, including the steps of forming from Al.sub.2 O.sub.3 and C in the ratio one mol Al.sub.2 O.sub.3 to 3 mols C, a first liquid of Al.sub.2 O.sub.3 and Al.sub.4 C.sub.3, creating in the first liquid a zone of increased temperature and/or decreased pressure to decompose the first liquid to a second liquid of Al and C, exhausting gases from the step of forming the first liquid without their passing through the second liquid, and recovering Al from the second liquid.

REFERENCES:
patent: 2829961 (1958-04-01), Miller et al.
patent: 2974032 (1961-03-01), Grunert et al.
patent: 3723093 (1973-03-01), Shiba et al.
patent: 3758289 (1973-09-01), Wood

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