A study on the radiolytic stability of commercial and purified Cyanex 301

被引：38

作者：

Chen, J

Jiao, RZ

Zhu, YJ

机构：

[1] Inst. of Nuclear Energy Technology, Tsinghua University, Beijing

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 1996年 / 14卷 / 04期

关键词：

gamma-irradiation; Cyanex; 301; extraction; radiation stability;

D O I：

10.1080/07366299608918356

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The results of acidimetric titration, infrared spectroscopy and P-31-NMR show that dialkylmonothiophosphinic acid, dialkylphosphinic acid and other phosphorus compounds form when Cyanex 301(TM) is damaged by gamma-irradiation. H2SO4 appears after a dose of 1x10(6)Gy. The radiolytic stability of Cyanex 301 improves after purification. The results of extraction experiments demonstrate that the extraction selectivity of Cyanex 301 toward Am over the lanthanides decreases after irradiation. The purified Cyanex 301 can still separate tracer amount of Am from tracer amount of Eu till 1x10(5)Gy while the commercial Cyanex 301 can do so only with 1x10(4)Gy.

引用

页码：555 / 565

页数：11

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