Extraction of Am(III), U(VI), and Pu(IV) from HCl solutions with diphenyl(dibutylcarbamoylmethyl)phosphine oxide

被引：5

作者：

Litvina M.N. ^{[1
]}

Chmutova M.K. ^{[1
]}

Kulyako Yu.M. ^{[1
]}

Myasoedov B.F. ^{[1
]}

机构：

[1] Vernadsky Inst. Geochem. Analyt. C., Russian Academy of Sciences, Moscow

来源：

Radiochemistry | 2004年 / 46卷 / 1期

基金：

俄罗斯基础研究基金会;

关键词：

Oxide; Physical Chemistry; Inorganic Chemistry; Acid Concentration; Phosphine;

D O I：

10.1023/B:RACH.0000024633.68095.4f

中图分类号：

学科分类号：

摘要：

Extraction of Am(III), U(VI), and Pu(IV) from HCl solutions with solutions of diphenyl(dibutylcarbamoylmethyl)phosphine oxide in dichloroethane and m-nitrobenzotrifluoride was studied. The curves of the Am(III) and U(VI) extraction as a function of the acid concentration pass through a minimum at [HCl] = 1 M, followed by a steep ascent at the acid concentration increased further. The logarithmic dependences of the distribution factors on the extractant concentration are nonlinear, with the slope of the upper portions close to 2 for Am(III) and 1 for U(VI). Pu(IV) is extracted noticeably worse than U(VI). A significant anomalous aryl strengthening effect is observed in HCl solutions.

引用

页码：41 / 43

页数：2

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