Electrolytic process for potassium hydroxide

Details Electrolytic process for potassium hydroxide Electrolytic process for potassium hydroxide

1976-04-27

1977-12-13

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 116, C25B 126

Patent

active

040627438

ABSTRACT:
Current efficiency in an electrolytic membrane cell for the production of potassium hydroxide from aqueous solutions of KCl is considerably increased by maintaining the anolyte concentration of KCl at 250-350 grams per liter and the catholyte concentration of KOH at from about 410 to about 480 grams per liter. The electrolytic cell employs a cationic permselective membrane comprised of a hydrolyzed copolymer of a perfluoroolefin and a fluorosulfonated perfluorovinyl ether.

REFERENCES:
patent: 3773634 (1973-11-01), Stacey et al.
patent: 3897320 (1975-07-01), Cook
patent: 3954579 (1976-05-01), Cook et al.

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