Regeneration of alkaline treating agents

Details Regeneration of alkaline treating agents Regeneration of alkaline treating agents

1984-06-25

1985-05-28

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204 98, 204128, 204104, 204180P, 423234, 423245, C02C 512, C25B 120

Patent

active

045198810

ABSTRACT:
A process is disclosed for electrolysis of a spent caustic solution in a three-compartment cell to produce alkali metal hydroxide, hydrogen and hydrogen sulfide. The hydrogen sulfide is oxidized to sulfur dioxide which is returned to the electrolysis cell to form sulfuric acid.

REFERENCES:
patent: 3801698 (1974-04-01), Lowrance et al.
patent: 3806435 (1974-04-01), Ohta et al.
patent: 4041129 (1977-08-01), Foster et al.
patent: 4191620 (1980-03-01), Young et al.
patent: 4246079 (1981-01-01), Goodrich et al.

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