Solvent extraction behavior of plutonium (IV) ions in the presence of simple hydroxamic acids

被引：47
|
作者：
Carrott, M. J.
Fox, O. D.
Maher, C. J.
Mason, C.
Taylor, R. J.
机构：
[1] Pacific NW Natl Lab, Richland, WA 99352 USA
[2] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 2007年 / 25卷 / 06期
关键词：
formohydroxamic acid; acetohydroxamic acid; advanced Purex; distribution coefficient; stability constant; actinide separations;
D O I：
10.1080/07366290701634560
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Formo- and aceto-hydroxamic acids are very effective reagents for stripping Pu(IV) ions from a tri-butyl phosphate phase into nitric acid. Distribution data for Pu(IV) in the presence of these hydroxamate ions have been obtained and trends established. The affinity of aceto-hydroxamic acid for Pu(IV) ions and its selectivity over U(VI) ions is demonstrated by the values of the stability constants in HClO4. These data support the applications of simple hydroxamic acids in advanced Purex-type solvent extraction systems.
引用
收藏
页码：723 / 745
页数：23
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