Solvent extraction of Zn(II) by Cyanex 923 and its application to a solid-supported liquid membrane system

被引：29

作者：

Alguacil, FJ ^{[1
]}

Martínet, S ^{[1
]}

机构：

[1] CSIC, Ctr Nacl Invest Met, E-28040 Madrid, Spain

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2001年 / 76卷 / 03期

关键词：

Cyanex; 923; extraction; membrane transport; zinc; chloride media;

D O I：

10.1002/jctb.369

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The extraction of zinc(II) by Cyanex 923 (phosphine oxides mixture) in Solvesso 100 from hydrochloric acid solution has been investigated. The extraction reaction is exothermic. The numerical analysis of metal distribution data suggests the formation of ZnCl2.L-2,HZnCl3. 2L and H2ZnCl4. 2L(L = ligand) in the organic phase with formation constants K-ext = 4.1,5.6 x 10(9) and 6.7 x 10(9), respectively. The results obtained for zinc(II) distribution have been implemented in a solid-supported liquid membrane system. The influence of source phase stirring speed, membrane composition and metal concentration on zinc transport have been investigated. (C) 2001 Society of Chemical Industry.

引用

页码：298 / 302

页数：5

共 29 条

[1]

Alguacil FJ, 1998, J CHEM TECHNOL BIOT, V72, P339, DOI 10.1002/(SICI)1097-4660(199808)72:4<339::AID-JCTB912>3.0.CO

[2]

2-L

[3] The extraction of mineral acids by the phosphine oxide Cyanex 923 [J].