This paper summarizes the results of separation and purification of 234Th from aged uranium salt with two processes (see flowsheet A or B). The flowsheet A: TBP extraction, anion exchange and TTA extraction; the flows...This paper summarizes the results of separation and purification of 234Th from aged uranium salt with two processes (see flowsheet A or B). The flowsheet A: TBP extraction, anion exchange and TTA extraction; the flowsheet B: Canon and anionexchange, TTA extraction. The total recovery efficiency of 234Th is about 90 %. The γ-spectrum of the end-product contains only two typic peaks of 234Th (63 and 92 keV). Pure 234Th is prepared.展开更多
文摘This paper summarizes the results of separation and purification of 234Th from aged uranium salt with two processes (see flowsheet A or B). The flowsheet A: TBP extraction, anion exchange and TTA extraction; the flowsheet B: Canon and anionexchange, TTA extraction. The total recovery efficiency of 234Th is about 90 %. The γ-spectrum of the end-product contains only two typic peaks of 234Th (63 and 92 keV). Pure 234Th is prepared.
