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Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
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推进选择性提取:一种用于,和离子捕获的新方法
Iryna Protsak1, Martin Stockhausen2, Aaron Brewer1
1Department of Functional Materials and Catalysis University of Vienna Währinger Straße 42 1090 Vienna Austria.
Small science
|April 11, 2025
概括
一种新型的二氧化吸附剂从复杂的混合物中选择性地回收了诸如 (Sc), (Th) 和 (U) 等有价值的元素. 这种可重复使用的材料对可持续的核燃料循环和先进的合金生产充满希望.
科学领域:
- 材料科学 材料科学 材料科学
- 核化学 核化学 核化学
- 分析化学 分析化学
背景情况:
- (Th) 和 (U) 是关键的核燃料,需要有效的回收方法.
- 将这些元素与共存的稀土元素 (REEs) 分离,对于它们的可持续利用至关重要.
- 从REEs中提取高价值的 (Sc) 对先进的合金技术至关重要.
研究的目的:
- 开发一种选择性联体功能化酸盐吸收剂,用于提取Sc,REEs,Th和U.
- 为了评估吸附剂在不同pH值和复杂元素组成中的性能.
- 评估吸附剂的可重复使用性和工业应用潜力.
主要方法:
- 合成一个配体功能化的二氧化吸附剂.
- 从多元素溶液中测试Sc,REEs,Th和U的选择性吸附.
- 改变溶液pH值和元素组成以确定最佳条件.
- 在多个重复使用周期中评估吸附剂性能.
主要成果:
- 在3-20元素溶液中的pH4处具有异常的Sc选择性.
- 在18和20元素溶液中的pH2处具有优异的Th选择性.
- 在18元素和20元素溶液中的pH4下显著的U选择性.
- 有效吸附 Nd,Dy 和 La 从无 Sc 溶液中,优先选择 Nd.
- 吸附剂在十个重复使用周期中保持了性能.
结论:
- 开发的吸附剂对包括Sc,Th和U在内的目标元素具有很高的选择性.
- 它的坚固性和可重复使用性表明其在元素回收领域的工业应用具有重大潜力.
- 这一进步支持核燃料和先进材料行业的可持续实践.
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