Electrolysis of aqueous solution of alkali metal chloride

Details Electrolysis of aqueous solution of alkali metal chloride Electrolysis of aqueous solution of alkali metal chloride

1979-08-08

1981-02-17

Prescott, Arthur C.

Chemistry: electrical and wave energy

Processes and products

521 27, C25B 116, C25B 126, C25B 1308

Patent

active

042513332

ABSTRACT:
An electrolysis of an aqueous solution of an alkali metal chloride is carried out to produce an alkali metal hydroxide having a concentration of 30 wt. % or more and chlorine by using a modified cation exchange membrane of a fluorinated polymer having carboxylic acid type ion exchange groups, which has an ion exchange capacity of 1.0 to 2.2 meq/g.dry polymer and at least one of whose surface layer has lower ion exchange capacity which is from 45 to 95% of that of the main part.

REFERENCES:
patent: 4123336 (1978-10-01), Seko et al.
patent: 4151053 (1979-04-01), Seko et al.

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