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Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys

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Melchakov S. Y., Maltsev D. S., Volkovich V. A., Yamshchikov L. F., Lisienko D. G., Osipenko A. G., Rusakov M. A.

issue 4

915-920

Partitioning of uranium and neodymium was studied in a ‘molten chloride salt - liquid Ga-X (X = In or Sn) alloy’ system. Chloride melts were based on the low-melting ternary LiCl-KCl-CsCl eutectic. Nd/U separation factors were calculated from the thermodynamic data as well as determined experimentally. Separation of uranium and neodymium was studied using reductive extraction with neodymium acting as a reducing agent. Efficient partitioning of lanthanides (Nd) and actinides (U), simulating fission products and fissile materials in irradiated nuclear fuels, was achieved in a single stage process. The experimentally observed Nd/U separation factor valued up to 106, depending on the conditions.

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1 Nukleonika

1 2015

1 Lisienko D. G.

1 Maltsev D. S.

1 Melchakov S. Y.

1 Osipenko A. G.

1 Rusakov M. A.

1 Volkovich V. A.

1 Yamshchikov L. F.

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Uranium and neodymium partitioning in alkali chloride melts using low-melting gallium-based alloys