使用新型硫胺二-18-皇冠-6从天然溶液中分离-212
Shiquan Cao1, Yujia Kang1, Huiping Tang1
1School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China. zchen@ustc.edu.cn.
Dalton transactions (Cambridge, England : 2003)
|February 1, 2024
概括
一种新型的提取剂,2,13-二硫基乙胺二-18-皇冠-6 (DSADB18C6),可以有效地从废物中提取212. 这种方法为医疗同位素生产和环境风险减轻提供了有前途的解决方案.
科学领域:
- 放射化学 放射化学是指辐射化学.
- 核化学 核化学 核化学
- 材料科学 材料科学 材料科学
背景情况:
- 从 (Th) 废物中提取-212 (Pb) 对环境安全和医疗同位素供应至关重要.
- 目前的方法在经济可行性和效率方面面临挑战.
研究的目的:
- 为了合成和评估一种新型提取剂,2,13-二硫基乙胺二-18-皇冠-6 (DSADB18C6),以有效地分离Pb.
- 将其性能与商业提取剂进行比较,并验证其在放射性废物流中的应用.
主要方法:
- 合成DSADB18C6并评估其使用稳定的Pb (II) 提取能力.
- 提取参数的优化,包括度,时间和剥离剂.
- 用玛光谱学从酸溶液中分离Pb的验证.
- 密度函数理论 (DFT) 计算以了解提取机制.
主要成果:
- 在最佳条件下,DSADB18C6在10分钟内实现了高达96.1%的Pb (II) 提取效率.
- 经过多次剥离周期后,高提取效率 (90.2%) 保持不变.
- 与商用提取剂DtBuDC18C6.6相比,DSADB18C6表现出优越的性能.
- 证实了212Pb与酸的成功分离,回收率超过85.7%.
结论:
- DSADB18C6是一种高效且有前途的提取剂,用于从放射性废物中分离212Pb.
- 这种新的方法为生产医疗同位素和处理放射性废物提供了可行的途径.
- 该研究验证了DSADB18C6在核废物再处理中的工业规模应用的潜力.
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