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REVIEW OF POSSIBLE TECHNOLOGIES FOR ACTINIDE SEPARATIONS USING OTHER EXTRACTANTS THAN TBP

机译:使用除TBP以外的其他提取物审查可能的乙炔分离技术

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The properties of the extractants suitable for the new types of separations needed in the nuclear fuel cycle are reviewed. N,N-dialkylamides (RCO-NR'_2), diamides ((RR'NCO)_2rnCHR"), N,N-dialkylcarbamoylmethylenephosphonates (R_2NCOCH_2PO (OR')_2) or N,N-dialkylcarbamoylmethylene phosphines oxides (R_2NCOCH_2POR'_2), trialkylphosphine oxides (R_3PO); soft donors ligands for the trivalent actinide-lanthanide group separationrnare considered. The reasons for development of these separations are: 1) the separation of actinide (Ⅲ, Ⅳ, Ⅵ) from high level waste (SPIN or OMEGA programs) or actinides separation for waste decomissioning; 2) the replacement of TBP by N,N-dialkylamides in new PUREX reprocessing plants; the interest of N,N-dialkylamides for spent Th fuel reprocessing will also be discussed; 3) the actinide (Ⅲ)-lanthanide(Ⅲ) group separations needed before nuclear incineration of the long half life actinides.
机译:审查了适用于核燃料循环中所需的新型分离的萃取剂的性能。 N,N-二烷基氨基酰胺(RCO-NR'_2),二酰胺((RR'NCO)_2rnCHR“),N,N-二烷基氨基甲酰基亚甲基膦酸酯(R_2NCOCH_2PO(OR')_ 2)或N,N-二烷基氨基甲酰基亚甲基膦氧化物(R_2NCOCH_2POR'_2)考虑了三烷基氧化膦(R_3PO);三价act系元素-镧系元素分离的软施主配体,其产生的原因有:1)从高放废物(SPIN或OMEGA)中分离出act系元素(Ⅲ,Ⅳ,Ⅵ)程序)或act系元素分离,以进行废物退役; 2)在新的PUREX后处理厂中用N,N-二烷基酰胺代替TBP;还将讨论N,N-二烷基酰胺对乏Th燃料后处理的兴趣; 3)in系元素(长寿命的act系元素进行核焚之前需要进行Ⅲ)-镧系元素(Ⅲ)的分离。

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