Selective separation of copper with Lix 864 in a hollow fiber module

被引：56

作者：

Campderros, ME ^{[1
]}

Acosta, A ^{[1
]}

Marchese, J ^{[1
]}

机构：

[1] Unsl Conicet, Fac Quim Bioqca & Farm, Dept Qca, Lab Ciencias Superficie & Medios Porosos, RA-5700 San Luis, Argentina

来源：

TALANTA | 1998年 / 47卷 / 01期

关键词：

D O I：

10.1016/S0039-9140(98)00048-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The transfer and separation of Cu(II), Co(II), Ni(II) and Zn(II) ions across a hollow fiber supported liquid membrane containing LIX 864 as the mobile carrier dissolved in kerosene solvent has been investigated. The flux and selectivity for copper has been studied as a function of the feed flow, the carrier concentration in the liquid membrane and the extraction solution acidity. A maximum copper recovery at 30% of LIX (v/v) in the diluent was obtained. The permeation experiments showed that at pH 2 in the extraction solution a highly selective separation of Cu over the other cations can be achieved. Increasing the acidity of the extraction solution copper selectivity decrease and the grade of recuperation sequence is Cu > Co > Ni > Zn. These results suggest that in selected situations, this membrane system can be competitive with the conventional liquid-liquid extraction process, in particular in leaching solutions with low metal concentration. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：19 / 24

页数：6

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