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Solid-liquid extraction of Au(III) from aqueous chloride solutions by tri-n-dodecylammonium chloride impregnated in amberlite XAD-2 resin

✍ Scribed by I. Villaescusa; V. Salvadó; J. de Pablo

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 475 KB
Volume: 32
Category: Article
ISSN: 1381-5148
DOI: 10.1016/s1381-5148(96)00079-x

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✦ Synopsis

The extraction of Au@) from 1.0 mol dm" HCI solutions with the extractant tri-n-dodecylammonium chloride (TLAHCI) impregnated in a polymeric resin XAD-2 has been studied. The results of gold extraction showed that AuC13TLAHCl and AuC13(TLAHCl)2 were the extracted species in the resin. There was no loss of extraction resin capacity when thiourea solutions were used as stripping agent. It was also found that the system TLAHCUXAD-2 can be used to extract selectively gold from solutions containing zinc and copper.

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