Extraction chromatography of lanthanides using N,N,N′,N′-tetraoctyl diglycolamide (TODGA) as the stationary phase

被引：36
|
作者：
Husain, M. [2 ,3 ]
Ansari, S. A. [1 ]
Mohapatra, P. K. [1 ]
Gupta, R. K. [2 ]
Parmar, V. S. [3 ]
Manchanda, V. K. [1 ]
机构：
[1] Bhabha Atom Res Ctr, Div Radiochem, Bombay 400085, Maharashtra, India
[2] GGSIP Univ, Sch Biotechnol, Delhi 110006, India
[3] Univ Delhi, Dept Chem, Delhi 110007, India
来源：
DESALINATION | 2008年 / 229卷 / 1-3期
关键词：
TODGA; extraction chromatography; separation; lanthanides;
D O I：
10.1016/j.desal.2007.10.016
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Studies on the uptake of several lanthanides, viz. La, Pr, Pm, Eu, Tb, Ho, Er, Yb and Lu from nitric acid medium were carried Out Using extraction chromatographic resin made by impregnating Chromosorb-W with N,N,N'N'-tetraoctyl diglycolamide (TODGA). In the batch Studies, distribution coefficient (K) Values increased with the HNO3 concentration reaching a plateau at around 2.5 M HNO3. At a given acidity, the K-d values of Ln(III) ions followed the order of their ionic potential. Separation of lanthanides was attempted using TODGA/Chromosorb-W column. The breakthrough capacity of the column was determined for all the Ln(l I I) ions in the presence of 1 g/L of their respective carrier salts. An attempt has been made to separate lanthaides, viz. La3+, Eu3+, Tb3+, Ho3+, Yb3+ and Lu3+ using the column.
引用
收藏
页码：294 / 301
页数：8
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