Abstract
ABSTRACTThe complete recycle of used nuclear fuel (UNF) is desirable to recover the energy value from the remaining U and higher actinides; however, construction of a large-scale facility is extremely expensive. To address this issue, a hybrid process was evaluated in which UNF pretreated for tritium removal is dissolved in a tributyl phosphate (TBP) solvent. The distribution of the actinides and selected fission products was measured between the solvent and residual solids. Dissolution of these elements in the surrogate fuels was very effective. Most fission products from fuel irradiation except for the lanthanide elements would remain in the undissolved solids.
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