Scholarlink

<p>Using Am(III), Cm(III), Th(IV), U(IV), Np(IV), Pu(IV), Np(V), U(VI) and Pu(VI), the extraction of actinides in various valence states using a new aryl-substituted diglycolamide from nitric acid solutions was studied. In the case of solutions with moderate HNO<sub>3</sub> concentration, conditions for the separation of An(IV)/An(VI) and An(III)/An(VI) pairs were found. It was shown that the use of the extractant under consideration allows An(III) and An(IV) to be separated from the main fission products (with the exception of REEs). Compounds of tetravalent ([M(L)(NO<sub>3</sub>)<sub>3</sub>]<sub>2</sub>O) and hexavalent ([MO<sub>2</sub>(L)(NO<sub>3</sub>)<sub>2</sub>]) actinides with the new aryl-substituted diglycolamide were isolated in the crystalline form and characterised by X-ray diffraction and IR spectroscopy.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Solvent extraction of actinides in different valence states by new aryl-substituted diglycolamide from nitric acid solutions

  • 期刊论文

  • 发表日期：

    2025年11月15日

查看全文
  • Vladislav E. Sharov,
  • Yuliya T. Tikhomirova,
  • Alina A. Sivolap,
  • Galyna V. Kostikova,
  • Alexandr M. Fedoseev,
  • Mikhail S. Grigoriev,
  • Liudmila I. Demina,
  • Valery I. Zhilov,
  • Dmitriy A. Lapshin

摘要

Using Am(III), Cm(III), Th(IV), U(IV), Np(IV), Pu(IV), Np(V), U(VI) and Pu(VI), the extraction of actinides in various valence states using a new aryl-substituted diglycolamide from nitric acid solutions was studied. In the case of solutions with moderate HNO3 concentration, conditions for the separation of An(IV)/An(VI) and An(III)/An(VI) pairs were found. It was shown that the use of the extractant under consideration allows An(III) and An(IV) to be separated from the main fission products (with the exception of REEs). Compounds of tetravalent ([M(L)(NO3)3]2O) and hexavalent ([MO2(L)(NO3)2]) actinides with the new aryl-substituted diglycolamide were isolated in the crystalline form and characterised by X-ray diffraction and IR spectroscopy.