Silver recovery by ion exchange
The present invention according provides a method of re covering silver from silver containing halide solutions, com prising the steps of: (a) providing an ion exchange column comprising a weak anion exchange resin; (b) introducing the silver containing halide solution to the ion exchange col umn to...
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Zusammenfassung: | The present invention according provides a method of re covering silver from silver containing halide solutions, com prising the steps of: (a) providing an ion exchange column comprising a weak anion exchange resin; (b) introducing the silver containing halide solution to the ion exchange col umn to absorb silver in the weak anion exchange resin; (c) washing the loaded ion exchange resin with a first washing solution to rinse off absorbed zinc and optionally at least part of copper; (d) washing the loaded ion exchange resin with a second washing solution to rinse off remaining cop per; and (e) optionally washing the loaded ion exchange resin with a third washing solution to rinse off absorbed lead; and (f) eluting the loaded ion exchange resin with an eluent to remove silver from the resin and to obtain a silver containing solution. (Figure 1) 10796085_1 (GHMatters) P104741.AU.1 Figure 1 -- 4 42 |
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