中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Electrochemical behaviors and electrolytic separation of Th(IV) and Ce(III) in ThF4-CeF3-LiCl-KCl quaternary melt

文献类型:期刊论文

作者Wang, XB; Zheng, HY; Xu, QH; Zhu, TJ; Jiang, F; She, CF; Wang, CY; Cong, HX; Gong, Y; Huang, W
刊名SEPARATION AND PURIFICATION TECHNOLOGY
出版日期2019
卷号210期号:-页码:236—241
关键词LIF-NAF-KF LICL-KCL THORIUM ELECTRODEPOSITION FLUORIDES URANIUM
ISSN号1383-5866
DOI10.1016/j.seppur.2018.08.013
文献子类期刊论文
英文摘要The extraction and recycle of thorium is an essential step in the thorium-uranium closed fuel cycle designed for Thorium-based Molten Salt Reactor system (TMSR), and the separation of thorium from FPs especially lanthanides is a key issue in the thorium recovery. In this paper, the electrochemical behaviors of Th(IV) and Ce(III) on Mo electrode were studied by cyclic voltammetry (CV) and chronopotentiometry (CP) techniques at 773 K in ThF4(3 wt%)/CeF3(0.3 wt%)-LiCl-KCl ternary melt and CeF3(0.3 wt%)-ThF4(3 wt%)-LiCl-KCl quaternary melt, respectively. The reduction peaks of Th(IV)/Th(0) and Ce(III)/Ce(0) were at 1.83 V and 2.21 V (vs. Ag/AgCl) in the respective ternary melt, respectively, which were same with the values in the quaternary melt; however, the oxidation peaks in the CeF3-ThF4-LiCl-KCl melt shifted negatively about 0.1 V. Pulsed potential electrolysis of quaternary melt revealed that 98.9% of Th(IV) can be electrochemical separated from the melt with almost all cerium remaining in the melt, based on the inductively coupled plasma atomic emission spectrometer (ICP-AES) results.
语种英语
源URL[http://ir.sinap.ac.cn/handle/331007/31588]  
专题上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位1.Chinese Acad Sci, Ctr Excellence TMSR Energy Syst, Shanghai 201800, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China;
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
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Wang, XB,Zheng, HY,Xu, QH,et al. Electrochemical behaviors and electrolytic separation of Th(IV) and Ce(III) in ThF4-CeF3-LiCl-KCl quaternary melt[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,210(-):236—241.
APA Wang, XB.,Zheng, HY.,Xu, QH.,Zhu, TJ.,Jiang, F.,...&Li, QN.(2019).Electrochemical behaviors and electrolytic separation of Th(IV) and Ce(III) in ThF4-CeF3-LiCl-KCl quaternary melt.SEPARATION AND PURIFICATION TECHNOLOGY,210(-),236—241.
MLA Wang, XB,et al."Electrochemical behaviors and electrolytic separation of Th(IV) and Ce(III) in ThF4-CeF3-LiCl-KCl quaternary melt".SEPARATION AND PURIFICATION TECHNOLOGY 210.-(2019):236—241.

入库方式: OAI收割

来源:上海应用物理研究所

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