Synergistic solvent extraction and separation of trivalent lanthanide metals with mixtures of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one and aliquat 336

被引：49

作者：

Atanassova, M ^{[1
]}

Dukov, IL ^{[1
]}

机构：

[1] Univ Chem Technol & Met, Dept Inorgan Chem, BU-1756 Sofia, Bulgaria

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2004年 / 40卷 / 02期

关键词：

synergistic extraction; lanthanides; 4-benzoyl-3-methyl-l-phenyl-2-pyrazolin-5-one; Aliquat; 336; separation factors;

D O I：

10.1016/j.seppur.2004.02.007

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The solvent extraction of La, Nd, Eu, Ho and Lu with 4-benzoyl-3-methyl-l-phenyl-2-pyrazolin-5-one (HP) and the quaternary ammonium salt aliquat 336 in the chloride (QCl) and perchlorate (QClO(4)) forms in CHCl3, CCl4 and C6H12 has been studied. On the basis of the slope analysis, the composition of the extracted species was determined as Q(+)[LnP(4)](-) (Q(+) is the quaternary ammonium salt cation). The values of the equilibrium constant were obtained. The effect of the diluents and the anions of the salt on the metal extraction and separation was determined. The possible interaction between the extractants and its influence on the synergistic extraction process have been discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：171 / 176

页数：6

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