Highly selective and efficient membrane transport of palladium as PdCl42- ion using NH4+-dibenzyldiaza-18-crown-6 as carrier

被引：16

作者：

Khayatian, G ^{[1
]}

Shamsipur, M ^{[1
]}

机构：

[1] Razi Univ, Dept Chem, Kermanshah, Iran

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 1999年 / 16卷 / 03期

关键词：

liquid membrane; NH4+-dibenzyldiaza-18-crown-6 carrier; palladium transport; PdCl42-; anion; thiocyanate;

D O I：

10.1016/S1383-5866(99)00015-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ammonium-dibenzyldiaza-18-crown-6 complex was used as a highly efficient carrier for the uphill transport of palladium as PdCl42- complex ion through a chloroform bulk liquid membrane. By using thiocyanate as a metal ion acceptor in the receiving phase, the amount of palladium transported across the liquid membrane after 120 min was 92.2+/-1.4%. The selectivity and efficiency of palladium transport from aqueous solutions containing Tl+, Ca2+ Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Pb2+, Cd2+, Hg2+, Fe3+ and Cr3+ were investigated. In the presence of EDTA at pH 4.7 as a suitable masking agent in the source phase, the interfering effect of Hg2+ ion was diminished drastically. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：235 / 241

页数：7

共 39 条

[1] Highly efficient cooperative membrane transport of lead(II) ions by aza-18-crown-6 and palmitic acid [J].