Uranium dioxide in Fe(III)-containing ionic liquids with DMSO:   Dissolution, separation, and structural characterization

doi:10.1016/j.jnucmat.2016.08.035

CORC > 北京大学 > 化学与分子工程学院

	Uranium dioxide in Fe(III)-containing ionic liquids with DMSO: Dissolution, separation, and structural characterization
	Yao, Aining ; Chu, Taiwei
刊名	JOURNAL OF NUCLEAR MATERIALS
	2016
关键词	Uranium dioxide Fe(III)-containing ionic licpiids Raman spectroscopy ATR-IR spectroscopy Lanthanide oxides Dissolution DMSO Crystallization DIMETHYL-SULFOXIDE COMPLEXES SUPERCRITICAL CARBON-DIOXIDE SOLUBILIZING METAL-OXIDES URANYL COMPLEXES HALIDE-COMPLEXES AQUEOUS-SOLUTION ICP-AES CHLORIDE EXTRACTION SALTS
DOI	10.1016/j.jnucmat.2016.08.035
英文摘要	UO2 can be successfully dissolved in imidazolium-based Fe(III)-containing ionic liquids (ILs) with the help of DMSO. Spectroscopic studies and X-ray diffraction show that UO2Cl42- is the principal product. The dissolved uranyl species can be easily separated from the ILs via a combination of crystallization and solvent extraction. Moreover, even if 15.2 wt% of the rare-earth elements of Sm, Eu, and Gd, compared with the total amount of uranium and the rare-earth elements, exist in the IL, only uranium -containing crystals would be selectively formed and separated from the system. The solvents of acetone and acetonitrile could be used to separate the rare-earth elements from uranium in the IL with the help of imidazolium chloride. Considering the complete process from the dissolution of UO2 and some rare-earth oxides to the separation of uranium and rare-earth elements in the IL, the facile approach is promising for the spent nuclear fuel reprocessing. (C) 2016 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [91026011, 11575010]; SCI(E); EI; ARTICLE; twchu@pku.edu.cn; 301-309; 480
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/450009]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yao, Aining,Chu, Taiwei. Uranium dioxide in Fe(III)-containing ionic liquids with DMSO: Dissolution, separation, and structural characterization[J]. JOURNAL OF NUCLEAR MATERIALS,2016.
APA	Yao, Aining,&Chu, Taiwei.(2016).Uranium dioxide in Fe(III)-containing ionic liquids with DMSO: Dissolution, separation, and structural characterization.JOURNAL OF NUCLEAR MATERIALS.
MLA	Yao, Aining,et al."Uranium dioxide in Fe(III)-containing ionic liquids with DMSO: Dissolution, separation, and structural characterization".JOURNAL OF NUCLEAR MATERIALS (2016).