Process for the production of high purity aqueous alkali hydroxi

Details Process for the production of high purity aqueous alkali hydroxi Process for the production of high purity aqueous alkali hydroxi

1979-05-25

1981-06-30

Sebastian, Leland A.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 116, C25B 126

Patent

active

042761301

ABSTRACT:
High purity aqueous alkali hydroxide solutions containing predetermined, low concentrations of alkali metal halide are obtained in the anode compartment of an electrolytic cell using a cationic ion exchange membrane by conducting the electrolysis under controlled conditions such that the difference between the concentration of alkali metal halide in the anode compartment and the limiting concentration of alkali metal halide in the anode compartment is within a defined range.

REFERENCES:
patent: 3773634 (1973-11-01), Stacey et al.
patent: 3904496 (1975-09-01), Harke et al.
patent: 3933603 (1976-01-01), Ishida et al.
patent: 4025405 (1977-05-01), Dotson et al.

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