Process of electrolyzing aqueous solution of alkali halides

Details Process of electrolyzing aqueous solution of alkali halides Process of electrolyzing aqueous solution of alkali halides

1979-07-30

1981-01-27

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 134

Patent

active

042473756

ABSTRACT:
An improvement in a process of electrolyzing an aqueous solution of an alkali metal halide in a membrane cell in which a pH above 1.0 is maintained in the anode chamber, the alkali metal halide solution is removed from the anode chamber and its concentration and pH are increased is described. The improvement resides in thereafter decreasing the pH of at least a portion of the resultant solution to below 1.0 and thereafter adjusting the pH to 1.0 to 6.0 and returning the so adjusted solution to the anode chamber.

REFERENCES:
patent: 3438879 (1969-04-01), Kircher et al.
patent: 3793163 (1974-02-01), Dotson
General Chemistry by H. H. Sisler et al., 1949, p. 424.

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