Treatment of permionic membrane

Details Treatment of permionic membrane Treatment of permionic membrane

1980-11-17

1982-11-23

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204128, C25B 134

Patent

active

043604129

ABSTRACT:
Disclosed is a method of starting up a permionic membrane chloralkali electrolytic cell by hydrolyzing the permionic membrane inside the cell. The permionic membrane is hydrolyzed by maintaining one side in contact with aqueous alkali metal hydroxide, and the opposite side in contact with aqueous alkali metal chloride, where the concentration of the alkali metal chloride is maintained low enough to avoid osmotic concentration of the alkali metal hydroxide solution.

REFERENCES:
patent: 3985631 (1976-10-01), Hora et al.
patent: 4000057 (1976-12-01), Mrazek et al.
patent: 4124477 (1978-11-01), Tokawa et al.
patent: 4148979 (1979-04-01), Asami et al.
patent: 4168216 (1979-09-01), Burkhardt et al.
patent: 4311567 (1982-01-01), White

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