Electroseparation of thorium from ThO2 and La2O3 by forming Th-Al alloys in LiCl-KCl eutectic
文献类型：期刊论文
| 作者 | Liu YL(刘雅兰); Yuan LY(袁立永) ; Liu K(刘奎); Feng YX(冯一潇); Li ZJ(李子杰); Chai ZF(柴之芳); Shi WQ(石伟群); Liu, YL; Ye, GA; Yuan, LY
|
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2015 |
| 卷号 | 158页码:277-286 |
| 关键词 | Electroseparation thorium LiCl-KCl eutectic ThO2 and La2O3 Al-Th alloys |
| 通讯作者 | 石伟群 |
| 英文摘要 | In this work, AlCl3 was employed to chloridize ThO2 and La2O3 with the formation of ThCl4 and LaCl3 in the LiCl-KCl eutectic at 773 K. The chlorination can be accomplished in less than one hour, displaying a fast chlorination kinetic. Cyclic voltammetry (CV) technique was used to evaluate the feasibility of the separation of Th4+ from La3+ through forming Th-Al alloys. The results showed that the disparity between the deposition potentials of Th-Al and La-Al alloys was approximately 0.2 V at 773 K, which is theoretically sufficient for the separation of Th4+ from La3+. Subsequently, the separation of Th4+ from La3+ was carried out on Al cathodes by galvanostatic electrolysis and potentiostatic electrolysis at the temperature of 773 K. During the separation process, the concentrations of Th4+ and La3+ ions were monitored by both SquareWave Voltammetry (SWV) on a W electrode and ICP-AES analysis of the melt. The deposited 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, by potentiostatic electrolysis at -1.20 V for 48 h in an Al3+ ion sufficient system, the recovery rate of Th was determined to be 97.1%. In addition, the separation factor (SF) of Th to La of 1367.4 was achieved. (C) 2015 Elsevier Ltd. All rights reserved. |
| 学科主题 | Electrochemistry |
| 类目[WOS] | Electrochemistry |
| 收录类别 | SCI ; EI ; CA |
| WOS记录号 | WOS:000350446000036 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228232]  |
| 专题 | 高能物理研究所_院士 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Liu YL,Yuan LY,Liu K,et al. Electroseparation of thorium from ThO2 and La2O3 by forming Th-Al alloys in LiCl-KCl eutectic[J]. ELECTROCHIMICA ACTA,2015,158:277-286. |
| APA | 刘雅兰.,袁立永.,刘奎.,冯一潇.,李子杰.,...&Shi, WQ.(2015).Electroseparation of thorium from ThO2 and La2O3 by forming Th-Al alloys in LiCl-KCl eutectic.ELECTROCHIMICA ACTA,158,277-286. |
| MLA | 刘雅兰,et al."Electroseparation of thorium from ThO2 and La2O3 by forming Th-Al alloys in LiCl-KCl eutectic".ELECTROCHIMICA ACTA 158(2015):277-286. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。