K. T. M. Ito, S. Takahashi, C. Kato, S. Fukutani, T. Matsumura, T. Fujii
{"title":"Solvent extraction of tin in nitric acids: evaluation of multiple extractants","authors":"K. T. M. Ito, S. Takahashi, C. Kato, S. Fukutani, T. Matsumura, T. Fujii","doi":"10.1007/s10967-025-10003-7","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, the solvent extraction behavior of tin (Sn), specifically <sup>126</sup>Sn, from high-level radioactive waste was evaluated using six different extractants in a HNO<sub>3</sub> system. Among the tested extractants, <i>N,N</i>-Didodecyl-2-hydroxyacetoamide <b>(</b>HAA) exhibited higher efficiency, still not sufficient for industrial implementation. In systems where HCl was added to HNO<sub>3</sub>, both tributyl phosphate (TBP) and <i>N,N,N,N’</i>-tetra-2-ethylhexyl diglycolamide (TEHDGA) achieved <i>D</i><sub>Sn</sub> values greater than 1 at > 1 M HCl. However, due to practical challenges in industrial applications, HAA extraction in HNO<sub>3</sub> systems, particularly at low Sn concentrations (0.0008 M), may provide a more effective solution for Sn recovery.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 3","pages":"2467 - 2475"},"PeriodicalIF":1.6000,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-025-10003-7","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
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 DSn 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.
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.
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