Sorption and separation of some elements of nuclear importance using Chelex-100

被引：0
|
作者：
F. H. El-Sweify
机构：
[1] Atomic Energy Authority,Nuclear Chemistry Department, Hot Laboratories Centre
来源：
Journal of Radioanalytical and Nuclear Chemistry | 1997年 / 222卷
关键词：
Acidity; Optimum Condition; Acid Solution; Hydrochloric Acid; Chloro;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Chelex-100, in the anionic form has been studied for its ability to perform selective separation and concentration of some metal ions of nuclear importance from mineral acid solutions. The sorption behavior of Zr(IV)−Nb(V), Mo(VI), Tc(VII), Te(IV) and U(VI) from solutions of hydrochloric and sulphuric acids on Chelex-100 has been studied under static and dynamic conditions. Mo(VI) and Tc(VII) have been concentrated on the resin from hydrochloric or sulphuric acid solutions at low acidities probably, as the anions MoO42− and TcO4−, respectively. Te(IV) has been isolated from hydrochloric acid solutions of normalities ≥6 in the form of the anionic chloro complex TeCl62−. Optimum conditions for elution and separation of Mo(VI), Tc(VII), Te(IV) and U(VI) were recommended.
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页码：55 / 59
页数：4
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