Electrolytic cell and processes for producing alkali hydroxide a

Details Electrolytic cell and processes for producing alkali hydroxide a Electrolytic cell and processes for producing alkali hydroxide a

1994-02-15

1995-08-01

Gorgos, Kathryn

Chemistry: electrical and wave energy

Processes and products

204 98, 204265, 2041824, C25B 120, C25B 130, C25B 900

Patent

active

054377714

ABSTRACT:
The electrolytic cell 1 for producing alkali hydroxide or hydrogen peroxide is divided into the anode compartment 3 and the cathode compartment 4 by the cation exchange membrane 2. The cathode compartment 4 is further divided by the anion exchange membrane 6 into the solution compartment 7 containing a concentrated aqueous solution of alkali hydroxide and the gas compartment accommodating the gas cathode 8. The anion exchange membrane 6 prevents the gas cathode 8 from coming into direct or indirect contact with the aqueous solution of alkali hydroxide. This leads to the extended life of the gas cathode. The above-mentioned arrangement is effective in large-sized electrolytic cells. Thus, the present invention can be applied to industrial electrolysis which has never been achieved with the conventional gas electrode.

REFERENCES:
patent: 3124520 (1964-03-01), Juda
patent: 4357217 (1982-11-01), Kuehn et al.

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