Method for restoring the current efficiency

Details Method for restoring the current efficiency Method for restoring the current efficiency

1986-01-02

1988-03-08

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 114

Patent

active

047298197

ABSTRACT:
In the electrolysis of sodium chloride by means of a perfluoro cation exchange membrane for the production of sodium hydroxide having a concentration of from 32 to 40% by weight, a method for restoring the current efficiency, which comprises suspending the electrolysis when the current efficiency of the perfluoro cation exchange membrane has dropped to a predetermined level, and maintaining the catholyte concentration at a level of not higher than 30% by weight.

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