Method for recovering silver from waste photographic film and pa

Details Method for recovering silver from waste photographic film and pa Method for recovering silver from waste photographic film and pa

1987-10-23

1988-07-26

Andrews, R. L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

B01D 1100

Patent

active

047599146

ABSTRACT:
Silver is recovered from photographic emulsion by a process comprising oxidizing whereby the emulsion is oxidized with an acid solution of 10-26 percent ferric chloride at a pH of up to about 2.

REFERENCES:
patent: 1582847 (1926-04-01), MacDonald
patent: 3733256 (1973-05-01), Anderson
patent: 4256704 (1981-03-01), Howard
patent: 4662938 (1987-05-01), Whitney et al.

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