Electrolysis of sodium chloride in an ion-exchange membrane...

Details Electrolysis of sodium chloride in an ion-exchange membrane... Electrolysis of sodium chloride in an ion-exchange membrane...

C - Chemistry, Metallurgy

25

B

204/57.3

C25B 1/46 (2006.01)

Patent

CA 1128459

ELECTROLYSIS OF SODIUM CHLORIDE IN AN ION-EXCHANGE MEMBRANE CELL Abstract of the disclosure: A sodium chloride feed solution containing an iron cyanide complex is subjected to purification to reduce the content of iron cyanide complex to not more than 0.5 ppm before it is fed as anolyte into an ion-exchange membrane electrolytic cell. The iron cyanide complex is preferably converted by oxidative decomposition to iron ions for removal. By use of such a purified sodium chloride as starting material, electrolysis of sodium chloride using an ion-exchange membrane can be performed for a long term at a constant electrolysis voltage.

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