Recovery of silver nitrate by transport across a liquid membrane containing dicyclohexano 18 crown 6 as a carrier

被引：29

作者：

ElBachiri, A ^{[1
]}

Hagege, A ^{[1
]}

Burgard, M ^{[1
]}

机构：

[1] ECOLE EUROPEENNE CHIM POLYMERES & MAT STRASBOURG,LAB CHIM MINERAL & ANALYT,URA 405,CNRS,F-67008 STRASBOURG,FRANCE

来源：

JOURNAL OF MEMBRANE SCIENCE | 1996年 / 121卷 / 02期

关键词：

liquid membranes; pertraction; silver transport;

D O I：

10.1016/S0376-7388(96)00169-X

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The solvent extraction and transport through a bulk liquid membrane of silver nitrate from a copper nitrate medium by dicyclohexano 18 crown 6 (DC18C6) in dichloromethane takes place via the formation of the complex ion pair Ag(DC18C6)NO3 in the organic phase. The selectivity of the transfer process characterises the semi-permeability of the liquid membrane, which is able to concentrate silver cations. Results show that the transport is well described by the two-film theory.

引用

页码：159 / 168

页数：10

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