Effect of long-range interactions on ion equilibria in liquid-liquid extraction

被引：30

作者：

Dufreche, J. -F. ^{[1
]}

Zemb, Th. ^{[1
]}

机构：

[1] Univ Montpellier 2, Inst Chim Separat Marcoule, ICSM UMR 5257, CEA,CNRS,ENSCM,Ctr Marcoule, F-30207 Bagnols Sur Ceze, France

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 622卷

关键词：

SOLVENT-EXTRACTION; REVERSE MICELLES; WATER; MICROEMULSIONS; AGGREGATION; SYSTEM; SAXS;

D O I：

10.1016/j.cplett.2014.11.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We demonstrate here that equilibria of electrolytes between a water phase and an (organic) solvent phase containing amphiphilic extractants depend not only on complexation toward nearest neighbors but also on long range supramolecular interactions (LRI). Taking into account bulk, polarization and chain reorganization terms, we show that the net free energy difference associated with one metal ion transfer from water results from a strong inhibition (>25 k(B)T/ metal ion) due to colloidal long range interactions competing with differences in complexation considered in surpramolecular chemistry (approximate to 3-30 k(B)T/ metal ion). LRI also influence selectivity. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：45 / 49

页数：5

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