The effect of acetohydroxamic acid on the distribution of Np(IV) and Np(VI) between 30% TBP and nitric acid

被引：7
|
作者：
Chung, Dong Yong [1 ]
Lee, Eil Hee [1 ]
机构：
[1] Korea Atom Energy Res Inst, Dept Nucl Chem Engn, Taejon 305600, South Korea
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2008年 / 451卷 / 1-2期
关键词：
neptunium; acetohydroxamic acid; distribution ratio; tributylphosphate;
D O I：
10.1016/j.jallcom.2007.04.238
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Distribution ratios of Np(IV) and Np(VI) between 30 vol.% TBP/n-dodecane and 1 M nitric acid were measured with varying concentrations of acetohydroxamic acid (AHA). Distribution experiments were undertaken by contacting a 1: 1 (v/v) of 30% TBP/n-dodecane with a simulated solution, which contained a variety of elements such as Ce, Nd, Mo, Zr, Fe, Sr, Ni, Pd and Ru. Distribution ratio values of Np(IV) and Np(VI) in a 1.0 M nitric acid concentration were about D-Np(IV) congruent to 1.0 and D-Np(VI) congruent to 6.4, respectively. But, the addition of AHA brought about a remarkable reduction in the Np extraction with the AHA concentration. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：440 / 442
页数：3
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