Method of regenerating cation exchange membrane by treatment wit

Details Method of regenerating cation exchange membrane by treatment wit Method of regenerating cation exchange membrane by treatment wit

1983-07-15

1985-07-02

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

C08D 520

Patent

active

045269041

ABSTRACT:
A method for regenerating a perfluorinated cation exchange polymer membrane which can give only a low current efficiency as a result of being used as a diaphragm in an electrolytic cell or an electrodialyzer, said method comprising maintaining said perfluorinated cation exchange polymer membrane at a temperature of at least 110.degree. C. while keeping it in contact with an aqueous solution of a strong acid having a pH at ordinary temperature of not more than 1.0.

REFERENCES:
patent: 4174426 (1979-11-01), Asami
patent: 4423157 (1983-12-01), Masuda

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