Rare-earth metal-ion separation using a supported liquid membrane mediated by a narrow rim phosphorylated calix[4]arene

被引：72

作者：

Yaftian, MR

Burgard, M

Dieleman, CB

Matt, D

机构：

[1] Univ Louis Pasteur Strasbourg 1, ECPM, Lab Chim Minerale & Analyt, CNRS,UMR 7512, F-67008 Strasbourg, France

[2] Univ Louis Pasteur Strasbourg 1, Grp Chim Inorgan Mol, CNRS, UMR7513, F-67008 Strasbourg, France

来源：

JOURNAL OF MEMBRANE SCIENCE | 1998年 / 144卷 / 1-2期

关键词：

calix[4]arenes; phosphine oxide; rare-earth ions; supported liquid membranes;

D O I：

10.1016/S0376-7388(98)00031-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The transport of rare-earth metal ions through a supported Liquid membrane mediated by 5,11,17,23-tetra-tert-butyl-25,26,27,28-tetrakis(diphenylphosphionoylmethoxy)calix[4]arene (1) (cone conformation) in o-nitrophenyl hexyl ether (NPHE) has been investigated. The effect of the initial metal concentration, salting-out agent concentration in the feed phase and temperature as well as the carrier concentration on the flux was studied. The separation ability of ligand 1 was tested for the separation of a mixture of II rare-earth metal ions (La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Pr, Yb and Y). The flux depends on the salting-out agent and varies according to the order Al(NO3)(3)>NaNO3>HNO3. Iu each case the maximum flux was found for Pr and Nd. Calixarene 1 exhibits an improved intragroup separation efficiency with respect to the non-macrocyclic ligand tri-n-octylphosphine oxide (TOPO). (C) 1998 Elsevier Science B.V.

引用

页码：57 / 64

页数：8

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