1 Department of Rare Metals and Nanomaterials, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia, Tel.: +7 343 375 4741, +7 912 689 3893, Fax: +7 343 375 4154
2 Department of Physical and Chemical Methods of Analysis, Institute of Physics and Technology, Ural Federal University, 19 Mira Str., Ekaterinburg, 620002, Russia
3 JSC “Research Institute of Atomic Reactors”, 10 Dimitrova Str., Dimitrovgrad, Ul’yanovsk Region, 435510, Russia
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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