Uranium dioxide in Fe(III)-containing ionic liquids with DMSO: Dissolution, separation, and structural characterization
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- 作者：Aining Yao ; Taiwei Chu ; twchu@pku.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Uranium dioxide ; Fe(III)-containing ionic liquids ; Raman spectroscopy ; ATR-IR spectroscopy ; Lanthanide oxides ; Dissolution ; DMSO ; Crystallization
- 刊名：Journal of Nuclear Materials
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：480
- 期：Complete
- 页码：301-309
- 全文大小：1389 K
文摘
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Dissolution of UO2 can be successfully achieved in imidazolium-based Fe-containing ILs with the help of DMSO without additional oxidants.
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Compared with the total amount of uranium and the rare-earth elements, even if 15.2 wt% of the rare-earth elements of Sm, Eu, and Gd exist in the IL, only uranium-containing crystals would be selectively formed and separated from the system.
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The separation of the rare-earth elements from uranium has also been achieved via a combination of crystallization and solvent extraction.