Recovery of erythorbates from photographic solutions

Details Recovery of erythorbates from photographic solutions Recovery of erythorbates from photographic solutions

1994-10-19

1995-10-10

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30728

Patent

active

054572142

ABSTRACT:
The present invention is directed to a method for the recovery of erythorbates from photographic solutions. In the disclosed method, the photographic solution is first acidified by passing it over an acidic cation exchange resin and the resultant solution is then passed over a weakly basic anion exchange resin.

REFERENCES:
patent: 2517276 (1950-08-01), Bassford
patent: 4159990 (1979-07-01), Andrews
patent: 4212988 (1980-07-01), Andrews
patent: 4778902 (1988-10-01), Fujiwar

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