Production of aluminum metal from alumina bauxites and clays by

Details Production of aluminum metal from alumina bauxites and clays by Production of aluminum metal from alumina bauxites and clays by

1982-09-29

1984-03-20

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 2102

Patent

active

044378874

ABSTRACT:
In the production of aluminum monochloride from alumina, bauxites and clays wherein the produced aluminum monochloride gas stream contains at least CO.sub.2 and Cl.sub.2 and this gas stream is initially passed through at least one bed of reducing agent selected from the group consisting of charcoal and devolatilized coke to convert the CO.sub.2 to CO; subsequently the gas stream now containing at least AlCl, CO and Cl.sub.2 is contacted with molten aluminum metal to convert the Cl.sub.2 to AlCl to produce a gas stream of which the major components are AlCl and CO substantially free of CO.sub.2 and Cl.sub.2.

REFERENCES:
patent: 1147832 (1915-07-01), Kugelgen et al.
patent: 1858272 (1932-05-01), Jenness
patent: 3793003 (1974-02-01), Othmer

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