Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1992-05-08
1993-08-24
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204105R, C25C 100
Patent
active
052385434
ABSTRACT:
A process which incorporates the recovery of silver from photographic film into the recovery of silver from photographic development waste solution is provided. In the process, a silver bearing emulsion layer coated on the surface of the photographic film is dissolved in the waste solution which is in turn subjected to an electrolysis treatment to recover metallic silver therefrom.
REFERENCES:
patent: 4317707 (1982-03-01), Good et al.
patent: 4612057 (1986-09-01), Buser et al.
Cheau Tei-Chih
Jean Jeng-Shyong
Lee Pak-Hing
Onlin Tyngbin
Igoe Patrick J.
Industrial Technology Research Institute
Liauh W. Wayne
Niebling John
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