盐酸介质中铀(Ⅲ)离子稳定性研究

STUDY ON THE STABILITY OF URANIUM(Ⅲ) ION IN HYDROCHLORIC ACID SOLUTION.

摘要: <正> 在盐酸介质中,铀(Ⅲ)-铀(Ⅳ)发生化学交换时具有明显的同位素富集效应,因此对铀(Ⅲ)溶液化学的研究已引起人们的关注。铀(Ⅲ)在空气中很不稳定,给实验带来较大困难,故有关报道甚少。本文进一步研究了铀(Ⅲ)的制备方法及其在盐酸介质、盐酸与有机溶剂混合介质中的稳定性以及一些有机溶剂对铀(Ⅲ)稳定性的影响,并初步测定了铀(Ⅲ)在TOPO-HCl体系中的分配比。

Abstract: Uranium (Ⅲ) solution is obtained by reducing uranyl ion with liquid zinc amalgan. The stabilities of U(Ⅲ) ion in hydrochloric acid with and without organic solvent are investigated in the presence of air and nitrogen atmosphere. Preliminary results of determining the distribution ratio of U(Ⅲ) in the TOPO-HC1 extraction system are presented.