Means for recovering a precious metal from an electrolyte soluti

Details Means for recovering a precious metal from an electrolyte soluti Means for recovering a precious metal from an electrolyte soluti

1980-03-14

1981-11-24

Gantz, Delbert E.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204237, 204272, 204273, 204275, 354297, 354324, C25B 1508, C25C 706, C25C 120

Patent

active

043023177

ABSTRACT:
The invention contemplates recovery of silver (a precious metal) from waste photographic-fixer solution, the apparatus being so devised and controlled that high purity is achieved in the reclaimed metal without contamination of the remaining solution. As a result, the remaining solution may be recycled, and requirements for replenishment of fixer chemical are held to minimum quantities. In an automated employment of the invention, assurance is provided that electroplating action will be called for only when it can be safely performed, without impairment of quality in the reclaimed metal or in the recycled solution.

REFERENCES:
patent: 2997438 (1961-08-01), James et al.
patent: 3694341 (1972-09-01), Luck, Jr.
patent: 3715299 (1973-02-01), Anderson et al.
patent: 3926768 (1975-12-01), Burgess
patent: 4028212 (1977-06-01), Bowen et al.
patent: 4149954 (1979-04-01), Ransbottom

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