Regeneration of spent developers

Details Regeneration of spent developers Regeneration of spent developers

1985-09-30

1987-07-14

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

430399, B01D 1504

Patent

active

046801235

ABSTRACT:
Anion exchangers containing OH groups as exchange active groups are suitable for the regeneration of photographic developers.

REFERENCES:
patent: 3253920 (1966-05-01), Rees et al.
patent: 3869383 (1975-03-01), Shimamura et al.
patent: 3931004 (1976-01-01), Shimamura et al.
patent: 4043907 (1977-08-01), Shimamura et al.
patent: 4163023 (1979-07-01), Endo et al.

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