High molecular weight amines as synergistic agents in the solvent extraction of lanthanides with thenoyltrifluoroacetone

被引：0
|
作者：
Dukov I.L. [1 ]
Jordanov V.M. [1 ]
机构：
[1] Department of Inorganic Chemistry, Univ. of Chem. Technol. and Metall.
来源：
Monatshefte für Chemie / Chemical Monthly | 1999年 / 130卷 / 7期
关键词：
Aliphatic amines; Lanthanides; Separation factors; Synergistic extraction; Thenoyltrifluoroacetone;
D O I：
10.1007/PL00010268
中图分类号：
学科分类号：
摘要：
Summary. The synergistic solvent extraction of Pr, Gd, and Yb with mixtures of thenoyltrifluoroacetone (HTTA) and chlorides and perchlorates of methyldioctylamine (MDOA), trioctylamine (TOA), and tridodecylamine (TDDA) in C6H6 was studied. The composition of the extracted species was determined as Ln(TTA)3BHA (B = MDOA, TOA, TDDA; A Cl , CIO4-). The values of the equilibrium constants and the separation factors were calculated. The effect of the ammonium sails on the extraction process and the separation of the lanthanides is discussed.
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页码：865 / 871
页数：6
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