Solvent extraction of tin in nitric acids: evaluation of multiple extractants

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-02-10 DOI:10.1007/s10967-025-10003-7

K. T. M. Ito, S. Takahashi, C. Kato, S. Fukutani, T. Matsumura, T. Fujii

引用次数: 0

Abstract

In this study, the solvent extraction behavior of tin (Sn), specifically ¹²⁶Sn, from high-level radioactive waste was evaluated using six different extractants in a HNO₃ system. Among the tested extractants, N,N-Didodecyl-2-hydroxyacetoamide (HAA) exhibited higher efficiency, still not sufficient for industrial implementation. In systems where HCl was added to HNO₃, both tributyl phosphate (TBP) and N,N,N,N’-tetra-2-ethylhexyl diglycolamide (TEHDGA) achieved D_Sn values greater than 1 at > 1 M HCl. However, due to practical challenges in industrial applications, HAA extraction in HNO₃ systems, particularly at low Sn concentrations (0.0008 M), may provide a more effective solution for Sn recovery.

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硝酸中锡的溶剂萃取：多种萃取剂的评价

在本研究中，用六种不同的萃取剂在HNO3体系中对高放废物中锡（Sn），特别是126Sn的溶剂萃取行为进行了评价。在所测试的萃取剂中，N，N-二十二烷基-2-羟基乙酰胺（HAA）的萃取效率较高，但仍不足以实现工业应用。在HCl加入HNO3的体系中，磷酸三丁酯（TBP）和N，N，N,N ' -四-2-乙基己基二甘醇（TEHDGA）在1 M HCl下的DSn值均大于1。然而，由于工业应用中的实际挑战，在HNO3体系中提取HAA，特别是在低锡浓度（0.0008 M）下，可能为锡的回收提供更有效的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.