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http://dx.doi.org/10.1016/j.net.2021.08.030

Interaction between UN and CdCl2 in molten LiCl-KCl eutectic. II. Experiment at 1023 K  

Zhitkov, Alexander (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Potapov, Alexei (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Karimov, Kirill (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Kholkina, Anna (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Shishkin, Vladimir (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Dedyukhin, Alexander (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Zaykov, Yury (Institute of High Temperature Electrochemistry of the Ural Branch of the Russian Academy of Sciences)
Publication Information
Nuclear Engineering and Technology / v.54, no.2, 2022 , pp. 653-660 More about this Journal
Abstract
The interaction between UN and CdCl2 in the LiCl-KCl molten eutectic was studied at 1023 K. The chlorination was monitored by sampling and recording the redox potential of the medium. At 1023 K the chlorination of UN with cadmium chloride in the molten LiCl-KCl eutectic proceeds completely and results in the formation of uranium chlorides. The melts of the LiCl-KCl-UCl3 or LiCl-KCl-UCl4 compositions can be obtained by the end of experiment depending on the presence of metallic cadmium in the reaction zone. The higher the concentration of the chlorinating agent, the faster the reaction rate. At [CdCl2]/[UN] = 1.65 (10% excess) the reaction proceeds to completion in about 7.5 h. At [CdCl2]/[UN] = 7 the complete chlorination takes 2.5-3 h.
Keywords
Reprocessing of spent nuclear fuel; Nitride nuclear fuel; Chlorination; Pyrochemistry; UN; CdCl2; Molten salts;
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Times Cited By KSCI : 1  (Citation Analysis)
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