Electrolytic cell having a depolarized cathode

Details Electrolytic cell having a depolarized cathode Electrolytic cell having a depolarized cathode

1980-07-07

1982-06-01

Gantz, Delbert E.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204266, 204283, 204295, 204296, C25B 900, C25B 1103, C25B 1306, C25B 1308

Patent

active

043326625

ABSTRACT:
An improved electrolytic cell for the electrolysis of alkali metal halide solutions to produce halides and alkali metal hydroxides is provided wherein current reductions are obtained by the passage of an oxidizing gas, such as oxygen, into a porous cathode to depolarize the cathode and eliminate the porduction of hydrogen. The cathode is provided with small diameter pores for diffusion of said oxidizing gas, and larger diameter pores or holes for liquid product flow through the cathode. The cathode, separator, and anode may be in direct contact with each other in a sandwich configuration, thus eliminating the need for a catholyte compartment and external H.sub.2 O feed lines.

REFERENCES:
patent: 3410783 (1968-11-01), Tomter
patent: 4033848 (1977-07-01), Strempel et al.
patent: 4062753 (1977-12-01), Falvo
patent: 4101395 (1978-07-01), Motani et al.
patent: 4181592 (1980-01-01), Babinsky
patent: 4244793 (1981-01-01), Johnson et al.

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