Separation of volatile impurities from aluminum chloride before

Details Separation of volatile impurities from aluminum chloride before Separation of volatile impurities from aluminum chloride before

1985-04-15

1986-03-18

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

204243R, 204246, 204247, C25C 306, C25C 308

Patent

active

045766908

ABSTRACT:
Separating volatile impurities from AlCl.sub.3 by supplying impure AlCl.sub.3 into a molten salt bath of a gas separation compartment in an electrolysis cell. The impurities are removed from the compartment and molten salt bath containing dissolved AlCl.sub.3 is carried under a partition into a chamber where the AlCl.sub.3 is electrolyzed. In a preferred embodiment, desublimation is avoided by supplying AlCl.sub.3 to the bath as a gas rather than in solid form.

REFERENCES:
patent: 2892764 (1959-06-01), Andrews
patent: 3374163 (1968-03-01), Meier et al.
patent: 3464900 (1969-09-01), Foley et al.
patent: 3480654 (1969-11-01), Sundermeyer et al.
patent: 4151061 (1979-04-01), Ishikawa et al.

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