Solvent extraction of Pt(IV) by Aliquat 336 and its application to a solidsupported liquid membrane system

Authors
Fontas, C Salvado, V Hidalgo, M
Citation
C. Fontas et al., Solvent extraction of Pt(IV) by Aliquat 336 and its application to a solidsupported liquid membrane system, SOLVENT EXT, 17(1), 1999, pp. 149-162
Citations number
23
Categorie Soggetti
Chemistry
Journal title
SOLVENT EXTRACTION AND ION EXCHANGE
ISSN journal
07366299 → ACNP
Volume
17
Issue
1
Year of publication
1999
Pages
149 - 162
Database
ISI
SICI code
0736-6299(1999)17:1<149:SEOPBA>2.0.ZU;2-U
Abstract
The extraction of Pt(IV) by Aliquat 336 (R3R'N+Cl-) in dodecane modified wi th 4% dodecanol from hydrochloric acid solutions has been investigated. The analysis of metal distribution data by numerical calculations suggested th e formation of the species (R3R'N+)(2)PtCl62- in the organic phase with for mation constant log beta= 5.26+/-0.02. The results obtained on Pt(IV) distr ibution have been implemented in a solid supported liquid membrane system, being NaClO4 solutions the most effective to strip the metal from the organ ic solution. Influence of membrane composition and metal concentration on p latinum transport have also been studied.