Process for the production of a cation exchange diaphragm and th

Details Process for the production of a cation exchange diaphragm and th Process for the production of a cation exchange diaphragm and th

1981-06-10

1985-08-27

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204296, 264 25, 264 41, 264216, 26433115, 427 36, 521 27, 521 31, 525344, C25B 1308

Patent

active

045376689

ABSTRACT:
Cation exchanger diaphragm which can in particular be used as a solid electrolyte.
This diaphragm comprises a grafted copolymer film, particularly polyethylene grafted by styrene and has an exchange capacity exceeding 0.5 meq/g, a resistivity below 100.OMEGA..cm, a swelling in water exceeding 30% compared with the dry mass and a permeability relative to oxygen and hydrogen such that in the electrolysis of water these two gases are obtained with a purity level exceeding 98%.

REFERENCES:
patent: 3304272 (1967-02-01), Zenftman et al.
patent: 3905879 (1975-09-01), Eng et al.
patent: 3928687 (1975-12-01), Wada et al.
patent: 4012303 (1977-03-01), D'Agostino et al.
patent: 4481306 (1984-11-01), Marhus et al.

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