铀离子选择性电极的研制及其在溶浸工作中的应用

DEVELOPMENT OF SELECTIVE ELECTRODE OF URANIUM ION AND ITS APPLICATION TO SOLUTION LEACHING

本文详细介绍了一种新的铀离子选择性电极的研制过程。电极由三辛胺萃取ＵＯ２（ＳＯ４）４－３形成的三辛胺－ＵＯ２（ＳＯ４）３离子缔合物为电活性物质，以三辛胺为离子交换剂构成。其结构简单，在铀含量为５×１０－５－１×１０－２ｍｏｌ·Ｌ－１范围内有良好的线性关系，响应斜率接近Ｎｅｒｎｓｔ理论值。

The procesc of the development of a new selective electrode of uranium ion is introduced in detail in this paper.The electorde is composed of trioctylamine UO 2(SO 4) 4- 3 ion complex derived from trioctylamin extracting UO 2(SO 4) 4- 3 as the electro active material and trioctylamine as ionicexchange agent. With simple structure,it has fine linear relationship during the range of 5×10 -5 -1×10 -2 mol·L -1 U and its response gradient is closed to the Nernst thcoretical value.The electrode has been applied initially on determination of Uranium of the in situ leaching solutions.