Multi-layered diaphragm for electrolysis

Details Multi-layered diaphragm for electrolysis Multi-layered diaphragm for electrolysis

1985-11-25

1986-08-05

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204128, 204252, 204282, 204296, C25B 134, C25B 146, C25B 1302

Patent

active

046041702

ABSTRACT:
A multi-layered diaphragm for electrolysis, which comprises a porous layer of a fluorine-containing polymer having a pore diameter of from 0.05 to 10 .mu.m, a porosity of from 30 to 95% and a thickness of from 30 to 450 .mu.m and with its interior and anode-side surface being hydrophilic, and an ion exchange resin layer supported on the cathode side thereof and having a thickness thinner than the porous layer but of at least 5 .mu.m and an ion exchange capacity of from 0.5 to 2.0 meq/g dry resin, the total thickness being from 35 to 500 .mu.m.

REFERENCES:
patent: 3976549 (1976-08-01), Falvo
patent: 4124458 (1978-11-01), Moeglich
patent: 4135996 (1979-01-01), Bouy et al.
patent: 4289600 (1981-09-01), Lasarz et al.
patent: 4289601 (1981-09-01), Kadija
patent: 4341615 (1982-07-01), Bachot et al.
patent: 4342636 (1982-08-01), Chang et al.
patent: 4399009 (1983-08-01), Chisholm
patent: 4455210 (1984-06-01), Coker et al.
patent: 4457815 (1984-07-01), Levin

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