Method of reducing chlorate formation in a chlor-alkali electrol

Details Method of reducing chlorate formation in a chlor-alkali electrol Method of reducing chlorate formation in a chlor-alkali electrol

1978-03-01

1978-11-28

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 134

Patent

active

041274571

ABSTRACT:
In a chlor-alkali electrolytic cell in which an aqueous alkali metal chloride solution is electrolyzed, said electrolytic cell having an anode compartment containing an anode and a cathode compartment containing a cathode separated by a substantially fluid impervious membrane barrier consisting of a copolymer of tetrafluoroethylene and a sulfonated perfluorovinyl ether, the formation of alkali metal chlorates in the anode compartment is reduced by operating the chlor-alkali cell at high salt conversions greater than 40% and preferably between about 60% and about 80% conversion.

REFERENCES:
patent: 3773634 (1973-11-01), Stacey et al.
patent: 3878072 (1975-04-01), Cook et al.
patent: 3948737 (1976-04-01), Cook et al.
patent: 3954579 (1976-05-01), Cook et al.
patent: 4025405 (1977-05-01), Dotson et al.

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