Abstract
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)2CHR”), dialkylcarbamoylmethylenephosphonates (R2NCOCH2PO (OR’)2) or N,N- dialkylcarbamoylmethylene phosphines oxides (R2NCOCH2POR’2), trialkylphosphine oxides (R3PO); soft donors ligands for the trivalent actinide-lanthanide group separation are 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.
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Musikas, C. (1999). Review of Possible Technologies for Actinide Separations Using Other Extractants Than TBP. In: Choppin, G.R., Khankhasayev, M.K. (eds) Chemical Separation Technologies and Related Methods of Nuclear Waste Management. NATO Science Series, vol 53. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4546-6_6
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DOI: https://doi.org/10.1007/978-94-011-4546-6_6
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