在氧化物提取系统中,用于分离美洲-兰坦化物,用Morpholine衍生水友性1,10-phenanthroline-2,9-dicarboxamide在氧化物提取系统中
Mariia V Evsiunina1,2, Kirill S Domnikov1, Petr I Matveev1
1Department of Chemistry, Lomonosov Moscow State University, 119991, Leninskie gory 1 bld. 3, Moscow, Russia. nenajdenko@gmail.com.
Dalton transactions (Cambridge, England : 2003)
|November 24, 2025
概括
一种新型的水友复合剂,N2,N9-bis(2-morpholinoethyl) -1,10-phenanthroline-2,9-dicarboxamide (L),在溶剂提取过程中有效地将Americium(III) 与兰坦化物分离,达到高达26的分离因子.
科学领域:
- 放射化学 放射化学是指辐射化学.
- 协调化学 协调化学
- 分离科学 分离科学
背景情况:
- 开发选择性复合剂对于核废弃物再处理和管理化物和化物元素至关重要.
- 水友性联体在分离过程中的水相复合中具有优势.
研究的目的:
- 合成和评估一种新的水友性DAPhen衍生物L,作为一种选择性复合剂,用于从兰化物中分离Am(III).
- 在基于氧化的系统中研究L的复合行为和提取性能.
主要方法:
- 合成N2,N9-bis(2-morpholinoethyl) -1,10-phenanthroline-2,9-dicarboxamide (L) 的合成. 这是一个非常好的方法.
- 电位计和光谱计定位与Eu(III).
- 用于结构分析的X射线晶体学.
- 使用L与TOPO在煤油或F-3.中的溶剂提取实验.
主要成果:
- L与Eu(III) 形成1:1和1:2复合体.
- X射线晶体学揭示了阴离子被水分子逐渐替代和形态蛋白组的质子化.
- 添加L增强了Am(III) 与Eu(III) 和其它甲酸的分离,SF(Eu/Am) 的分离率高达26.
- 观察到Am (III) /La (III) 分离的选择性有限.
结论:
- 合成的DAPhen衍生物L显示了三价乙化物 (An(III)) 与化物 (Ln(III)) 的组分离的潜力.
- 该系统有助于随后对美洲的逆提取.
- 进一步优化可能会提高特定分离的选择性.
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