Application of N,N-Ethyl(Hydroxyethyl)Hydroxylamine in the Separation of Pu From U in PUREX Process

The reduction back-extraction behavior of Pu(Ⅳ) from 30%TBP/OK with EHEH was investigated under conditions of different temperatures,different concentration of EHEH and HNO_3,various contacting-time and phase ratios respectively.It is shown that Pu(Ⅳ) from organic phase can be rapidly stripped into aqueous phase by EHEH;the batch stripping percentage of Pu(Ⅳ) approach 99% in contacting time of 5 s…