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Published May 2022 | public
Journal Article

Chlorination of uranium metal in molten NaCl-CaCl₂ via bubbling HCl

Abstract

Molten chloride salt fast reactors (MCFRs) will require UCl₃ dissolved in molten salt mixtures as fuel for nuclear fission. For infusing the salt with UCl3, bubbling HCl into NaCl-CaCl₂ in contact with U metal was investigated. The reaction was run up to 9 h and yielded U concentration up to 0.652 wt.%. Open circuit potential between a W electrode and Ag/AgCl reference electrode yielded a potential consistent with uranium existing as U(III) in the salt. This demonstrates that HCl can be a very effective chlorinating agent to infuse MCFR fuel with UCl₃ starting from U metal.

Additional Information

© Akadémiai Kiadó, Budapest, Hungary 2022. Received: 20 January 2022 / Accepted: 14 March 2022. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. The authors declare the following financial interests/personal relationships which may be considered as potential competing interests.

Additional details

Created:
August 22, 2023
Modified:
October 23, 2023