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Electrochemical separation of Th from ThO2 and Eu2O3 assisted by AlCl3 in molten LiCl-KCl
刘雅兰;Liu, YL; Yan, YD; Han, W; Zhang, ML; Yuan, LY; Lin, RS; Ye, GA; He, H; Chai, ZF; Shi, WQ; Yuan LY(袁立永); Chai ZF(柴之芳); Shi WQ(石伟群)
2013
发表期刊ELECTROCHIMICA ACTA
卷号114页码:180-188
摘要In this work, ThO2 and Eu2O3 were chloridized into ThCl4 and EuCl3 by AlCl3 in LiCl-KCl melts at 800 K, forming Th(IV) and Eu(III) ions. The co-reduction of Al(III), Th(IV) and Eu(III) ions on the tungsten electrode was studied by cyclic voltammetry and square wave voltammetry techniques in different AlCl3 containing systems. The results show that in the AlCl3-rich system, the potential disparity (Delta E) between Al-Th and Al-Eu alloys deposition is about 0.8 V, which is much higher than the necessary Delta E (0.20 V) for the separation of Th(IV) from Eu(III). Subsequently, the separation of Th from the melts was carried out on the aluminium electrode by the potentiostatic electrolysis at temperature of 800 K. The products were characterized by the scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), X-ray diffraction (XRD) and inductively coupled plasma atomic emission spectrometer (ICP-AES). Finally, in an AlCl3-rich system by the electrolysis at -1.8 V for 50 h, the very high separation factor (SF) of Th to Eu, and the excellent separation rate of Th were calculated to be >2.0 x 10(4) and >99.9%, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
关键词Electrochemical separation Molten salt Th ThO2-EuO2 Al-Th alloys
DOI10.1016/j.electacta.2013.09.154
收录类别SCI
WOS记录号WOS:000330487800025
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223885
专题院士
多学科研究中心
推荐引用方式
GB/T 7714
刘雅兰;Liu, YL,Yan, YD,Han, W,et al. Electrochemical separation of Th from ThO2 and Eu2O3 assisted by AlCl3 in molten LiCl-KCl[J]. ELECTROCHIMICA ACTA,2013,114:180-188.
APA 刘雅兰;Liu, YL.,Yan, YD.,Han, W.,Zhang, ML.,Yuan, LY.,...&石伟群.(2013).Electrochemical separation of Th from ThO2 and Eu2O3 assisted by AlCl3 in molten LiCl-KCl.ELECTROCHIMICA ACTA,114,180-188.
MLA 刘雅兰;Liu, YL,et al."Electrochemical separation of Th from ThO2 and Eu2O3 assisted by AlCl3 in molten LiCl-KCl".ELECTROCHIMICA ACTA 114(2013):180-188.
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