Porous diaphragm for electrochemical cell

Details Porous diaphragm for electrochemical cell Porous diaphragm for electrochemical cell

1985-09-19

1990-01-02

Niebling, John F.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 98, 204128, 204257, 204283, C25B 1300

Patent

active

048911070

ABSTRACT:
A porous diaphragm is disclosed for use in an electrochemical cell having at least one electrode characterized as porous and self-draining. The diaphragm provides a uniformity of flow of an electrolyte through the diaphragm even when exposed to varying electrolyte head pressures. The porous diaphragm of the invention has a plurality of layers of a microporous polyolefin film or a composite comprising the microporous polyolefin film and a support fabric resistant to deterioration upon exposure to an aqueous solution of an ionizable compound.

REFERENCES:
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patent: 4534845 (1985-08-01), McIntyre et al.
McGraw-Hill Encyclopedia, "Polyolefins Resins", p. 813, 1982.
Chemical and Engineering News, Mar. 12, 1984, "Trickle Bed Electrolytic Cell for Peroxide Developed".
Celgard Microporous Polypropylene Film (10 pages).
Paper presented at TAPPI Pulping Conference, Houston, TX, Oct., 1983, Brown, McIntyre, Dong, and Phillips.
Paper #399, presented at the 1982 Montreal Meeting of the Electrochemical Society entitled, "Electrolytic Synthesis of Hydrogen Peroxide in a Trickle Bed Cell", McIntyre et al.

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