Apparatus for silver recovery

Details Apparatus for silver recovery Apparatus for silver recovery

1974-04-08

1976-05-25

Tufariello, T. M.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204109, 204273, 204275, 259DIG46, B65D 6900, A24F 1500

Patent

active

039591107

ABSTRACT:
Silver is electrolytically recovered from photographic solutons, such as spent hypo, by feeding such a solution to a precollecting or measuring vessel where the solution collects until a predetermined volume has been received, at which time it is automatically dispensed, by a self-triggering siphon, into an electrolysis chamber of larger volume than the pre-collecting vessel and direct current is automatically turned on for a predetermined flow between an anode and a cathode in the chamber to plate out the silver on the cathode. An agitator, preferably a magnetic agitator, is also automatically energized to keep the solution homogeneously mixed during electrolysis, for maximum silver recovery efficiency.

REFERENCES:
patent: 951311 (1910-03-01), Hartman
patent: 2655011 (1953-10-01), Ihle et al.
patent: 3418225 (1968-12-01), Wick et al.
patent: 3477926 (1969-11-01), Snow et al.
patent: 3546089 (1970-12-01), Schneider
patent: 3694341 (1972-09-01), Luck, Jr.
patent: 3715291 (1973-02-01), Bentley

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