Preparation of chromic acid using bipolar membranes

Details Preparation of chromic acid using bipolar membranes Preparation of chromic acid using bipolar membranes

1991-06-21

1992-03-17

Niebling, John

Chemistry: electrical and wave energy

Processes and products

204 89, 204 97, C25B 100, C25B 122

Patent

active

050965476

ABSTRACT:
The invention relates to a process for the preparation of alkali metal dichromates and chromic acid by the electrolysis of monochromate and/or dichromate solutions in a multi-chamber cell, wherein the anode chamber is shielded from the solution of chromate, dichromate and/or chromic acid by a bipolar ion exchanger membrane.

REFERENCES:
patent: 3305463 (1967-02-01), Carlin
patent: 4273628 (1981-06-01), Kidon et al.

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