Method of treating a photographic processing solution

Details Method of treating a photographic processing solution Method of treating a photographic processing solution

1998-04-20

1999-11-23

Fortuna, Ana

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210651, 210490, 21050026, 210634, 2102572, 430398, 430399, 430400, B01D 6100

Patent

active

059894334

ABSTRACT:
The present invention concerns a method of extracting halide ions contained in a photographic processing solution. The invention concerns a method for the selective extraction of halide ions using a separative membrane comprising a support covered with an active layer comprising an inorganic hydrogel material and an ion carrier, one of the faces of the support having been surface-modified. This method effectively regenerates photographic solutions.

REFERENCES:
patent: 4451132 (1984-05-01), Kishimoto
patent: 5355191 (1994-10-01), Nakamura et al.
patent: 5633125 (1997-05-01), Martin
patent: 5679503 (1997-10-01), Martin et al.
patent: 5846428 (1998-12-01), Martin et al.

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