Influence of mixing time on plutonium reduction using centrifugal contactor

Nakahara, Masaumi; Sano, Yuichi   ; Sakamoto, Atsushi  ; Takeuchi, Masayuki ; Nakajima, Yasuo  

Centrifugal contactors is expected to apply to co-processing process, but there is concern that the mixing time of centrifugal contactors is not enough to reduce Pu because it is shorter than that of mixer-settlers. To study the influence of mixing time on the Pu reduction, the countercurrent experiments were carried out with a centrifugal contactor. The relationship of mixing time and Pu recovery ratio was evaluated, and mixing time for Pu reduction partitioning is indicated in an engineering plant.