Process for electrolytically purifying a photographic developer

Details Process for electrolytically purifying a photographic developer Process for electrolytically purifying a photographic developer

1975-02-18

1977-09-06

Prescott, Arthur C.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204130, C02C 504, C02C 512

Patent

active

040466558

ABSTRACT:
A photographic developer waste solution is electrolytically purified by adding to said waste solution chloride ion and bromide ion; or chloride ion, bromide ion and iodide or iodate ion under limited pH, temperature, anode current density and current concentration conditions.

REFERENCES:
patent: B391509 (1975-01-01), Fisch et al.
patent: 1900893 (1933-03-01), Hickman
patent: 1930143 (1933-10-01), Hickman et al.
patent: 1937179 (1933-11-01), Weisberg et al.
patent: 2737298 (1956-03-01), Hendel
patent: 3414497 (1968-12-01), Kanai
patent: 3485729 (1969-12-01), Hertz
patent: 3582485 (1971-06-01), Guter et al.
patent: 3642594 (1972-02-01), Crellin
patent: 3733256 (1973-05-01), Anderson
patent: 3778307 (1973-12-01), Beer et al.
Hillis, "Electrolytic Treatment of Effluents", Effluent and Water Treatment Journal, 2(12), (1969), pp. 647-650, 652-654.

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