核化学与放射化学2011，Vol.33Issue(4)：220-223,4.
预处理过程对Np(Ⅴ)稳定性的影响
Influence of Pretreatment on the Stability of Np( Ⅴ )
卞晓艳 1周燚平 1郑卫芳 1张柏青 1晏太红 1左臣 1张宇1
作者信息
- 1. 中国原子能科学研究院放射化学研究所,北京102413
- 折叠
摘要
Abstract
In order to improve the decontamination of neptunium in 2D extractor for uranium purification cycle, the oxidation conditions of Np(IV) and the effect of the pretreatment on the stability of Np( V) have been studied. The results show that in 0. 2 mol/L nitric acid feed solution, 97 % Np( IV ) can be oxidized to Np( V ) or Np( VI) within 2 h at 85 ℃. During the pretreatment, the ionic strength and the concentration of hydrazine has little influence on the stability of Np( V). The concentration of Np(IV) increases with the temperature, pretreatment time and acidity.关键词
镎/预处理/净化/铀纯化循环Key words
Np/ pretreatment/ decontamination/ uranium purification cycle分类
能源科技引用本文复制引用
卞晓艳,周燚平,郑卫芳,张柏青,晏太红,左臣,张宇..预处理过程对Np(Ⅴ)稳定性的影响[J].核化学与放射化学,2011,33(4):220-223,4.
