Carbothermic reduction process

Details Carbothermic reduction process Carbothermic reduction process

1975-09-05

1977-07-05

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 68A, C22B 2102

Patent

active

040337570

ABSTRACT:
A carbothermic process for the production of aluminum contaminated with no more than about 10 weight percent of aluminum carbide is disclosed which involves charging alumina values and carbon values into a furnace and subjecting only a minor portion of said charge at any given time of an open arc so as to heat the reagents to reaction temperture. The various vapors which form pass through the charge where they undergo additional reaction. The aluminum formed flows over the charge which is maintained at a temperature lower than reaction temperature, so as to obtain aluminum contaminated with no more than about 10 weight percent of aluminum carbide.

REFERENCES:
patent: 3723093 (1973-03-01), Shiba et al.
patent: 3929456 (1975-12-01), Kibby

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