Electrolysis of aqueous solution of potassium chloride

Details Electrolysis of aqueous solution of potassium chloride Electrolysis of aqueous solution of potassium chloride

1979-11-13

1981-04-14

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

204128, 204296, C25B 116, C25B 126, C25B 1308

Patent

active

042618037

ABSTRACT:
An electrolysis of an aqueous solution of potassium chloride is carried out by employing a fluorinated cation exchange membrane having an ion-exchange capacity of 0.8 to 2.0 meq/g dry polymer and having carboxylic acid groups as functional groups and maintaining a concentration of an aqueous solution of potassium hydroxide in a cathode compartment in a range of 20 to 45 wt. % and maintaining a calcium concentration in the aqueous solution of potassium chloride to lower than 0.05 mg/liter.
The purification of the aqueous solution of potassium chloride to reduce the calcium concentration is carried out in a system comprising a chelate ion-exchange substance.

REFERENCES:
patent: 4060465 (1977-11-01), Yokota
patent: 4065366 (1977-12-01), Oda
patent: 4118308 (1978-10-01), Specht
patent: 4176022 (1979-11-01), Darlington
patent: 4178218 (1979-12-01), Seko

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