Process for the manufacture of a bipolar membrane and process fo

Details Process for the manufacture of a bipolar membrane and process fo Process for the manufacture of a bipolar membrane and process fo

1994-03-31

1995-01-10

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

2041825, 204295, 204296, 204301, 521 27, B01D 6144

Patent

active

053804139

ABSTRACT:
Process for the manufacture of a bipolar membrane, according to which a cationic membrane is treated with a compound of a polyvalent metal and with an aqueous alkali metal hydroxide solution comprising lithium hydroxide and is then joined side by side to an anionic membrane. The bipolar membrane finds an application in the manufacture of aqueous sodium hydroxide solutions by electrodialysis.
No figure.

REFERENCES:
patent: 2829095 (1958-04-01), Oda et al.
patent: 4238305 (1980-12-01), Gancy et al.
patent: 5227040 (1993-07-01), Simons
R. Simmons: "A Novel Method for Preparing Bipolar Membranes". Electrochimica Acta, vol. 31, No. 9, pp. 1175 and 1176. Sep. (1986) no month given.

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