Production of a purified aluminum monochloride from alumina, bau

Details Production of a purified aluminum monochloride from alumina, bau Production of a purified aluminum monochloride from alumina, bau

1983-08-17

1985-08-20

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 2102

Patent

active

045362122

ABSTRACT:
In the production of aluminum monochloride from alumina, bauxites, bauxitic clays and clays wherein the produced aluminum monochloride gas stream contains at least CO.sub.2 and Cl.sub.2 radical 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 radical is contacted with molten aluminum metal to convert the Cl.sub.2 radical 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 radical.

REFERENCES:
patent: 3704113 (1972-11-01), Hildreth
patent: 3793003 (1974-02-01), Othmer
patent: 3842163 (1974-10-01), Russell et al.
patent: 3853541 (1974-12-01), Othmer
patent: 3856508 (1974-12-01), Othmer
patent: 4277446 (1981-07-01), Weston
patent: 4437887 (1984-03-01), Weston

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