Ultrasonication-enhanced regeneration of resin for adsorbing uranium from leach solutions generated via in-situ leaching

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-10-14 DOI:10.1007/s10967-024-09775-1

Yiru Zhou, Yihan Yang, Guanghui Li, Chuanfei Zhang, Ying Xu, Baoan Ren, Liangshu Xia

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Abstract

Ion exchange resins used in uranium mines for neutral in-situ leaching mining often experience a reduction in their working exchange capacity owing to contamination. Three regeneration techniques–ultrasonic regeneration, (HCl+H₂O₂) regeneration, and (HCl+H₂O₂) treatment–ultrasonication regeneration methods–were employed to treat the resin, and the efficiencies of the methods were compared. The results indicated that the combination of (1 mol HCl+0.5% H₂O₂) treatment with 10 min ultrasonication exhibited the highest regeneration effectiveness. The industrial applicability verification test showed that the combined method improved the working performanceof the resin from 62.50 to 80.88% after regeneration. Regenerating the contaminated resin in the leachate treatment plant can enhance the efficiency operation of the leachate treatment process.

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超声增强吸附原位浸出液中铀的树脂再生

在铀矿中用于中性原位浸出采矿的离子交换树脂往往由于污染而使其工作交换能力降低。采用超声波再生、（HCl+H2O2）再生和（HCl+H2O2）处理超声再生三种再生技术对树脂进行处理，并比较了三种再生方法的效率。结果表明，（1 mol HCl+0.5% H2O2）处理与超声处理10 min的组合再生效果最好。工业适用性验证试验表明，该组合方法可将树脂再生后的工作性能从62.50%提高到80.88%。在渗滤液处理厂对污染树脂进行再生，可以提高渗滤液处理工艺的运行效率。

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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.