Distribution and identification of Plutonium(IV) species in tri-n-butyl phosphate/HNO3 extraction system containing acetohydroxamic acid

被引：22
|
作者：
Tkac, P. [1 ]
Paulenova, A. [2 ]
Vandegrift, G. F. [3 ]
Krebs, J. F. [3 ]
机构：
[1] Oregon State Univ, Ctr Radiat, Corvallis, OR 97331 USA
[2] Oregon State Univ, Dept Nucl Engn & Radiat Hlth Phys, Corvallis, OR 97331 USA
[3] Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2009年 / 280卷 / 02期
关键词：
NITRATE COMPLEXES; HYDROXAMIC ACIDS; SPECIATION; NEPTUNIUM; IONS;
D O I：
10.1007/s10967-009-0524-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
There was a significant research progress achieved with the aim to modify conventional PUREX process by stripping of plutonium from the tri-n-butyl phosphate (TBP) extraction product in the form of non-extractable complexes upon addition of back-hold complexation agents. The present paper reports effects of such salt-free complexant, acetohydroxamic acid (HAHA), on distribution ratio of Pu(IV) under wide concentration of nitric acid and additional nitrate. General formula of plutonium species present in the organic phase can be described as Pu(OH)(x)(AHA)(y)(NO3)(4-x-y)center dot 2TBP center dot wHNO(3).
引用
收藏
页码：339 / 342
页数：4
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