Reprocessing Th-based spent fuels with di-1-methyl heptyl methyl phosphonate using centrifugal extractors
Li, RF; Zhao, HG; Liu, CX; He, SH; Li, Z; Li, QN; Zhang, L
2017
发表期刊HYDROMETALLURGY
ISSN0304-386X
卷号174期号:-页码:84-90
文章类型期刊论文
摘要In this paper, a reprocessing Th-based spent fuels process using di-1-methyl heptyl methyl phosphonate (DMHMP) as extractant was proposed and tested by multistage countercurrent extraction using batch simulation and centrifugal extractors. The analysis results of process samples show that the recovery of Th and U in 1A (co-extraction of Th and U), 1B (separation of Th from U) and 1C (stripping of U from organic to aqueous phase) section was more than 99.8% and 99.9%, respectively. The separation factor of Th from U and U from Th in 1B section was 5.9 x 10(3) and 7.1 x 10(3), respectively. Compared with Thorex process using TBP as extractant, the process could be operated under lower acidity and flow ratio of O:A due to the strong extraction ability of DMHMP. Thus, DMHMP would be a promising alternative extractant for Th-based spent fuels process.
关键词3rd Phase-formation Nitric-acid Solution Solvent-extraction Thorium(Iv) Separation u(Vi) Uranium(Vi) Contactors Phosphate Reactor
DOI10.1016/j.hydromet.2017.09.006
关键词[WOS]3RD PHASE-FORMATION ; NITRIC-ACID SOLUTION ; SOLVENT-EXTRACTION ; THORIUM(IV) ; SEPARATION ; U(VI) ; URANIUM(VI) ; CONTACTORS ; PHOSPHATE ; REACTOR
收录类别SCI
语种英语
WOS记录号WOS:000416195200011
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28802
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Li, RF,Zhao, HG,Liu, CX,et al. Reprocessing Th-based spent fuels with di-1-methyl heptyl methyl phosphonate using centrifugal extractors[J]. HYDROMETALLURGY,2017,174(-):84-90.
APA Li, RF.,Zhao, HG.,Liu, CX.,He, SH.,Li, Z.,...&Zhang, L.(2017).Reprocessing Th-based spent fuels with di-1-methyl heptyl methyl phosphonate using centrifugal extractors.HYDROMETALLURGY,174(-),84-90.
MLA Li, RF,et al."Reprocessing Th-based spent fuels with di-1-methyl heptyl methyl phosphonate using centrifugal extractors".HYDROMETALLURGY 174.-(2017):84-90.
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