Method for regenerating waste developers used for processing sil

Details Method for regenerating waste developers used for processing sil Method for regenerating waste developers used for processing sil

1975-08-21

1978-05-16

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204151, C25C 120

Patent

active

040897605

ABSTRACT:
A method for regenerating a spent developer used for processing silver halide photographic materials which comprises electrolyzing the spent developer using an electrolytic cell including an ion exchange membrane and composed of a cathode compartment and an anode compartment with the anode and the cathode being separated from each other by an anion exchange membrane, while charging the spent developer into the cathode compartment and an electrolytic solution into the anode compartment.

REFERENCES:
patent: 3004909 (1961-10-01), Gregor et al.
patent: 3075908 (1963-01-01), Kollsman
patent: 3296112 (1967-01-01), Kollsman
patent: 3925175 (1975-12-01), Fisch et al.

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