Cobalt extraction and cobalt-nickel separation from a simulated industrial leaching liquor by liquid surfactant membranes using Cyanex 302 as carrier

被引：24

作者：

Ribeiro, CP ^{[1
]}

Costa, AOS ^{[1
]}

Lopes, IPB ^{[1
]}

Campos, FF ^{[1
]}

Ferreira, AA ^{[1
]}

Salum, A ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Engn Quim, BR-30160030 Belo Horizonte, MG, Brazil

来源：

JOURNAL OF MEMBRANE SCIENCE | 2004年 / 241卷 / 01期

关键词：

liquid membranes; facilitated transport; cobalt-nickel separation; Cyanex; 302;

D O I：

10.1016/j.memsci.2004.03.038

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The application of liquid surfactant membranes (LSMs) for cobalt-nickel separation in a sulphuric liquor was investigated using bis(2,4,4-trimethylpentyl) monothiophosphinic acid, Cyanex 302, as carrier. A high nickel/cobalt initial concentration ratio was adopted for the external phase, namely 63.3:1, reproducing the one related to an industrial leaching liquor from a Brazilian company. The membrane phase was composed of the carrier, the surfactant ECA 4360 and the diluent Escaid 110, while, as internal phase, a 0.5 mol/l solution of sulphuric acid containing lithium as a tracer for membrane break-up was employed. For this system, the effects of extraction pH, external phase ionic strength and operating temperature were studied. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：45 / 54

页数：10

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