Cesium and strontium recovery from LiCl-KCl eutectic salt using electrolysis with liquid cathode

被引：7
作者：
Jang, Junhyuk [1 ]
Lee, Minsoo [1 ]
Kim, Gha-Young [1 ]
Jeon, Sang-Chae [2 ]
机构：
[1] Korea Atom Energy Res Inst, Radioact Waste Disposal Res Div, Daedeok daero 989-111, Daejeon 34057, South Korea
[2] Changwon Natl Univ, Sch Mat Sci & Engn, 20 Changwondaehak ro, Chang Won 51140, Gyeongsangnam D, South Korea
来源：
NUCLEAR ENGINEERING AND TECHNOLOGY | 2022年 / 54卷 / 10期
基金：
新加坡国家研究基金会;
关键词：
Recovery; Strontium; Cesium; Liquid cathode; LiCl-KCl salt; Pyroprocessing; CADMIUM CATHODE; SEPARATION; BISMUTH; DEPOSITION; URANIUM; FUEL;
D O I：
10.1016/j.net.2022.05.017
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
Deposition behaviors of Sr and Cs in various liquid cathodes, such as Zn, Bi, Cd, and Pb, were examined to evaluate their recovery from LiCl-KCl eutectic salt. Cations in the salt were deposited on the liquid cathode, exhibiting potential of-1.8 to-2.1 V (vs. Ag/AgCl). Zn cathode had successful deposition of Sr and exhibited the highest recovery efficiency, up to 55%. Meanwhile, the other liquid cathodes showed low current efficiencies, below 18%, indicating LiCl-KCl salt decomposition. Sr was recovered from the Zn cathode as irregular rectangular SrZn13 particles. A negligible amount of Cs was deposited on the entire liquid cathode, indicating that Cs was hardly deposited on liquid cathodes. Based on these results, we propose that liquid Zn cathode can be used for cleaning Sr in LiCl-KCl salt.(c) 2022 Korean Nuclear Society, Published by Elsevier Korea LLC. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
引用
收藏
页码：3957 / 3961
页数：5
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