Extraction of gold (iii) from hydrochloric acid solutions by tri-isobutyl phosphine sulfide in toluene.

V. Salvadó, M. Hidalgo, A. Masana, M. Muñoz, M. Valiente, M. Muhammed

Research output: Contribution to journalArticleResearchpeer-review

33 Citations (Scopus)

Abstract

The extractant tri-isobutyl phosphine sulfide (TIBPS), Cyanex 471, in toluene has been investigated for the extraction of Au(III) from aqueous HCI solutions. Analysis of the equilibrium data shows that the extraction proceeds via a solvating type mechanism by the formation of the species AuCI.R and AuCl3.2R for which formation constants are logβ11 = 34.84 and log β12 - 42.04 respectively (R =TIBPS). © 1990, Taylor & Francis Group, LLC. All rights reserved.
Original languageEnglish
Pages (from-to)491-502
JournalSolvent Extraction and Ion Exchange
Volume8
Issue number3
DOIs
Publication statusPublished - 1 Jan 1990

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