Reoxidation of uranium metal immersed in a Li^sub 2^O-LiCl molten salt after electrolytic reduction of uranium oxide

Reoxidation of uranium metal immersed in a Li^sub 2^O-LiCl molten salt after electrolytic reduction of uranium oxide

We present our findings that uranium (U) metal prepared by using the electrolytic reduction process for U oxide (UO2) in a Li2O-LiCl salt can be reoxidized into UO2 through the reaction between the U metal and Li2O in LiCl. Two salt types were used for immersion of the U metal: one was the salt used...

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Bibliographic Details
Published in:Journal of nuclear materials Vol. 485; p. 90
Main Authors: Choi, Eun-Young, Jeon, Min Ku, Lee, Jeong, Kim, Sung-Wook, Lee, Sang Kwon, Lee, Sung-Jai, Heo, Dong Hyun, Kang, Hyun Woo, Jeon, Sang-Chae, Hur, Jin-Mok
Format: Journal Article
Language:English
Published: Amsterdam Elsevier BV 01-03-2017
Subjects:
Immersion
Lithium chloride
Metal concentrations
Molten salts
Reduction (electrolytic)
Reoxidation
Salts
Studies
Uranium
Uranium oxide
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Summary:We present our findings that uranium (U) metal prepared by using the electrolytic reduction process for U oxide (UO2) in a Li2O-LiCl salt can be reoxidized into UO2 through the reaction between the U metal and Li2O in LiCl. Two salt types were used for immersion of the U metal: one was the salt used for electrolytic reduction, and the other was applied to the unused LiCl salts with various concentrations of Li2O and Li metal. Our results revealed that the degree of reoxidation increases with the increasing Li2O concentration in LiCl and that the presence of the Li metal in LiCl suppresses the reoxidation of the U metal.
ISSN:0022-3115
1873-4820