Diaphragms for use in the electrolysis of alkali metal chlorides

Details Diaphragms for use in the electrolysis of alkali metal chlorides Diaphragms for use in the electrolysis of alkali metal chlorides

1977-07-22

1979-09-18

Edmundson, F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204295, 204296, C25B 1304

Patent

active

041682211

ABSTRACT:
A diaphragm for use in the electrolysis of alkali metal chloride solutions in electrolytic diaphragm cells is comprised of a mixture of an electrically non-conducting, non-swelling support material impregnated with a mixture of sand and a synthetic thermoplastic polymeric binding agent. The diaphragms may include a lubricant, a wetting agent or an additive such as alumina, inorganic phosphates, lithium salts, lime, magnesia or inorganic magnesium salts. The diaphragms of the present invention have increased chemical and dimensional stability, a long operational life and are non-polluting.

REFERENCES:
patent: 3702267 (1972-11-01), Grot
patent: 3960647 (1976-06-01), Kircher et al.

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