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Process Energy of the Advanced Chemical Uranium Enrichment Process

Kunihiko Takeda, Hatsuki Onitsuka, Heiichiro Obanawa, Shin Saito

Nuclear Technology / Volume 81 / Number 3 / June 1988 / Pages 421-428

Technical Paper / Radioisotopes and Isotope Separation / dx.doi.org/10.13182/NT88-A16063

Process energy of the chemical uranium enrichment process is discussed using the dynamic enrichment factor, avoiding a cluster of commonly used equations that correlate relevant engineering parameters. An advanced process, whose process energy was found to be much smaller than in the original process in both laboratory and bench tests, has been recently developed and applied to a pilot plant. The basic principle underlying the improvement is an inverse redox reaction induced by the increased sorbability of multicoordinated metal-complex ions onto an ion-exchange resin. The energy requirement for the advanced process will be reduced to <100 kW·h/kg·separative work unit.