Recovery of silver from silver-containing solutions

Details Recovery of silver from silver-containing solutions Recovery of silver from silver-containing solutions

1975-10-28

1977-09-27

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

423 24, 75118P, C02B 142

Patent

active

040510263

ABSTRACT:
Silver is recovered from silver-containing solutions such as waste waters from the photographic and electroplating industries, by treating such solutions with a cation exchanger in the presence of thiourea or thiourea derivatives. The cation exchanger may be selected from tectosilicates, phyllosilicates and organic cation exchangers.

REFERENCES:
patent: 2304427 (1942-12-01), Sibley
patent: 2726141 (1955-12-01), Appell
patent: 3725259 (1973-04-01), Depree
patent: 3847841 (1974-11-01), Motani
patent: 3892688 (1975-07-01), Motani et al.
patent: 3892689 (1975-07-01), Motani et al.

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