Electrolysis of sodium chloride in an ion-exchange membrane cell

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

1978-10-03

1980-02-26

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 116, C25B 126

Patent

active

041905059

ABSTRACT:
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.

REFERENCES:
patent: 4038365 (1977-07-01), Patil et al.
patent: 4078978 (1978-03-01), Zirngiebl

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