Process for recovering silver from photographic solutions

Details Process for recovering silver from photographic solutions Process for recovering silver from photographic solutions

1992-09-17

1994-02-22

McCarthy, Neil M.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210912, 423 42, 430398, 430399, 430400, C02F 162

Patent

active

052887286

ABSTRACT:
Silver is recovered from a mixture of seasoned photoprocessing solutions by contacting the solutions with a mercapto-s-triazine or water-soluble salt thereof, the mercapto-s-triazine having the formula ##STR1## wherein: R is hydrogen, --NH.sub.4, --OH, alkyl having 1 to 8 carbon atoms, alkoxy having 1 to 8 carbon atoms, phenyl, cyclohexyl, oxazinyl, phenoxy, --NR'.sub.2 or SR";
wherein

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patent: 5085836 (1992-02-01), Booker
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