Extraction of U(VI), Th(IV), and rare-earth elements from nitric acid solutions with phosphoryl-and carbonyl-containing podands

被引：5
|
作者：
Turanov A.N. [1 ]
Karandashev V.K. [2 ]
Baulin V.E. [3 ]
机构：
[1] Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast
[2] Institute of Technological Problems of Microelectronics and Ultrapure Materials, Russian Academy of Sciences, Chernogolovka, Moscow oblast
[3] Institute of Physiologically Active Substances, Russian Academy of Sciences, Chernogolovka, Moscow oblast
来源：
Radiochemistry | 2007年 / 49卷 / 3期
关键词：
82.60.Hc;
D O I：
10.1134/S1066362207030083
中图分类号：
学科分类号：
摘要：
The distribution of HNO3 and microamounts of nitrates of U(VI), Th(IV), La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y between aqueous solutions of HNO3 and solutions of N,N'-dimethyl-N,N'- diphenyl-3-oxapentanediamide (I) and 1,3-bis(diphenylphosphinoyl)-2-oxapropane (II) in organic diluents was studied. The stoichiometry of the extractable complexes was determined, and the effect exerted by the extractant structure and by the organic diluent on the efficiency of recovery of rare-earth elements (REE) into the organic phase was examined. In nitric acid solutions, carbonyl-containing podand I surpasses in the extraction ability phosphoryl-containing podand II. The possibility of using a macroporous polymeric sorbent impregnated with compound I for recovering REE from nitric acid solutions was demonstrated. © Nauka/Interperiodica 2007.
引用
收藏
页码：256 / 263
页数：7
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