用搅拌液镉阴极在LiCl-KCl熔盐中电化学沉积U和RE元素

IF 1 4区工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY

Science and Technology of Nuclear Installations Pub Date : 2021-10-28 DOI:10.1155/2021/5788732

Gha-Young Kim, C. Lee, D. Yoon, Junhyuk Jang, Sung-Jai Lee

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引用次数: 1

摘要

本研究旨在了解搅拌液体镉阴极(LCC)对U和U/RE在Cd上电沉积的影响。为此，使用配备Cd搅拌器的LCC进行了一系列电积试验。最初，使用LiCl-KCl-UCl3在500°C恒流条件下进行了三次U电沉积试验。从前三次运行的结果来看，U的最大沉积量为7.4 wt% U/Cd。LCC坩埚上U枝晶的形成在三次运行中都没有观察到。使用LiCl-KCl-UCl3-RECl3进行了另外三次运行，以确定U/RE电沉积的程度。U + RE金属沉积的最大摩尔数为0.07，估计是这些金属在Cd中的溶解度极限的2.14倍。本研究结果表明，使用Cd搅拌器显著提高了U的沉积程度。

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Electrochemical Deposition of U and RE Elements Using the Stirred Liquid Cadmium Cathode in LiCl-KCl Molten Salts

This study was conducted in an attempt to understand the effect of a stirred liquid cadmium cathode (LCC) on the electrodeposition of U and U/RE on Cd. For this purpose, a series of electrowinning tests were performed using an LCC equipped with a Cd stirrer. Initially, three runs of the U electrodeposition tests were conducted using LiCl-KCl-UCl3 at 500°C under a constant current. From the results obtained from the initial three runs, it was found that the maximum deposited amount of U was 7.4 wt% U/Cd. U dendrite formation on the LCC crucible was not observed across each of the three runs. Three additional runs were conducted using LiCl-KCl-UCl3-RECl3 to determine the extent of U/RE electrodeposition. The maximum number of moles of U + RE metals deposited was 0.07, a value estimated to be 2.14 times higher than the solubility limits exhibited by these metals in Cd. The results of this study show that the use of a Cd stirrer significantly improves the extent of U deposition.

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来源期刊

Science and Technology of Nuclear Installations NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

2.30

自引率

9.10%

发文量

审稿时长

4-8 weeks

期刊介绍： Science and Technology of Nuclear Installations is an international scientific journal that aims to make available knowledge on issues related to the nuclear industry and to promote development in the area of nuclear sciences and technologies. The endeavor associated with the establishment and the growth of the journal is expected to lend support to the renaissance of nuclear technology in the world and especially in those countries where nuclear programs have not yet been developed.