Experimental Study of Codeposition Electrochemistry Using Mixtures of ScCl₃ and YCl₃ in LiCl-KCl Eutectic Salt at 500°C

Technical Report · Tue Sep 12 04:00:00 EDT 2017

DOI:https://doi.org/10.2172/1392964· OSTI ID:1392964

Shaltry, Michael R. ^[1]; Yoo, Tae-Sic ^[1]; Fredrickson, Guy L. ^[1]

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1. Idaho National Lab. (INL), Idaho Falls, ID (United States)

Cyclic voltammetry and chronopotentiometry tests were applied to molten LiCl-KCl eutectic at 500 °C including amounts of ScCl₃ and YCl₃. The purpose of the testing was to observe the effect of applied electrical current on the codeposition of scandium and yttrium, which were chosen as surrogate elements for uranium and plutonium, respectively. Features of the work were to vary the concentration of ScCl₃ (at relatively low concentrations) as well as varying the applied current, all with a fixed concentration of YCl₃. Results of the experiments could provide insight of uranium electrorefining and may provide evidence, which suggests the electrorefiner could be operated at lower UCl₃ concentration whereby codeposition (U and Pu) could be more effectively controlled.

• Research Organization: Idaho National Laboratory, Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1392964
• Report Number(s): INL/EXT--17-43147; M3FT-17IN030106023
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Electrochemistry
codeposition
molten salt
scand