SOLVENT EXTRACTION OF Pt(IV) BY ALIQUAT 336 AND ITS APPLICATION TO A SOLID SUPPORTED LIQUID MEMBRANE SYSTEM
SOLVENT EXTRACTION OF Pt(IV) BY ALIQUAT 336 AND ITS APPLICATION TO A SOLID SUPPORTED LIQUID MEMBRANE SYSTEM
复制标题
ALIQUAT 336 溶剂萃取 Pt(IV) 及其在固体支撑液膜系统中的应用
DOI：
10.1080/07360299908934605
复制
发表时间：
1999
影响因子：
2
通讯作者：
M. Hidalgo
中科院分区：
文献类型：
--
作者：
C. Fontàs;V. Salvadó;M. Hidalgo
摘要 研究了用 Aliquat 336 (R3R'N+Cl−) 在用 4% 十二烷醇改性的十二烷中从盐酸溶液中萃取 Pt(IV) 的情况。通过数值计算对金属分布数据进行分析表明，在有机相中形成了(R3R'N+)2PtCl6 2− 物质，其形成常数log β=5.26±0.02。 Pt(IV) 分布获得的结果已在固体支持的液膜系统中得到实施，其中 NaClO4 溶液对于从有机溶液中剥离金属最有效。还研究了膜组成和金属浓度对铂传输的影响。
ABSTRACT The extraction of Pt(IV) by Aliquat 336 (R3R'N+Cl−) in dodecane modified with 4% dodecanol from hydrochloric acid solutions has been investigated. The analysis of metal distribution data by numerical calculations suggested the formation of the species (R3R'N+)2PtCl6 2− in the organic phase with formation constant log β=5.26±0.02. The results obtained on Pt(IV) distribution have been implemented in a solid supported liquid membrane system, being NaClO4 solutions the most effective to strip the metal from the organic solution. Influence of membrane composition and metal concentration on platinum transport have also been studied.