Process for the electro-oxidation of photographic solutions

Details Process for the electro-oxidation of photographic solutions Process for the electro-oxidation of photographic solutions

1996-02-06

1998-03-10

Phasge, Arun S.

Electrolysis: processes, compositions used therein, and methods

Electrolytic material treatment

205688, 205742, 205759, 205760, C02F 1461

Patent

active

057257515

ABSTRACT:
The invention concerns a process and a device for the treatment by electrolysis of used photographic solutions containing developers in an electrolytic cell comprising at least one platinum anode. The invention enables the corrosion of the platinum anode to be minimized by using an efficient quantity of antifoaming agent and keeping the pH constant at a value equal to or above 10.5 at the beginning of electrolysis. The invention enables the quantity of platinum coming from the anode in solution to be reduced.

REFERENCES:
patent: 3998710 (1976-12-01), Itai et al.
patent: 4046655 (1977-09-01), Itai et al.
patent: 4985118 (1991-01-01), Kurematsu et al.
patent: 5160417 (1992-11-01), Neale
patent: 5277775 (1994-01-01), Neale

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