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URANIUM FOR SEPARATION OF URANIUM (VI) AND PLUTONIUM (IV) WITHOUT REDUCTION OF PLUTONIUM (IV)

机译:用于分离铀(VI)和钚(IV)的铀而不减少钚(IV)

摘要

The invention relates to the use of ureas as extractants for fully or partially separating uranium(VI) from plutonium(IV) in an aqueous solution obtained by dissolving a spent nuclear fuel in nitric acid, by means of liquid-liquid extraction, without carrying out any reduction of the plutonium(IV) to plutonium(III). The invention also relates to new ureas. Uses are the processing of spent nuclear fuels based on uranium (especially uranium oxides - UOX) or uranium and plutonium (especially mixed uranium and plutonium oxides - MOX).
机译:本发明涉及通过溶解硝酸在硝酸中溶解的水溶液中的水溶液中的完全或部分分离铀(VI)的溶解剂的用途脲为溶解剂,通过液 - 液萃取,而不进行 将钚(IV)还原为钚(III)。 本发明还涉及新的脲。 用途是基于铀(尤其是氧化铀 - ux)或铀和钚(特别是混合铀和钚氧化物 - MOX)的废核燃料加工。

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