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http://dx.doi.org/10.7733/jnfcwt.2015.13.4.263

Effect of Rare Earth Elements on Uranium Electrodeposition in LiCl-KCl Eutectic Salt  

Park, Sungbin (Korea Atomic Energy Research Institute)
Kang, Young-Ho (Korea Atomic Energy Research Institute)
Hwang, Sung Chan (Korea Atomic Energy Research Institute)
Lee, Hansoo (Korea Atomic Energy Research Institute)
Paek, Seungwoo (Korea Atomic Energy Research Institute)
Ahn, Do-Hee (Korea Atomic Energy Research Institute)
Publication Information
Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT) / v.13, no.4, 2015 , pp. 263-269 More about this Journal
Abstract
It is necessary to investigate the electrodeposition behavior of uranium and other elements on the cathode in the electrorefining process to recover the uranium selectively from the reduced metals of the electrolytic reduction process since transuranic elements and rare earth elements is dissolved in the LiCl-KCl eutectic salt. Study on separation factors of U, Ce, Y and Nd based on U and Ce was performed to investigate the deposition behavior of the cathode with respect to the concentration of rare earth elements in LiCl-KCl eutectic salt. After electrorefining with constant current mode by using Ce metal as a sacrifice anode, the contents of U, Ce, Y and Nd in the salt phase and the deposit phase of the cathode were analyzed, and separation factors of the elements were obtained from the analyses. Securing conditions of pure uranium recovery in the elctrorefining process was investigated by considering the separation factors with respect to $UCl_3$ and $CeCl_3/UCl_3$ ratio.
Keywords
Electrorefining; Uranium deposit; Rare earth element; Separation factor; Ce sacrifice anode;
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