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Yamamoto, Masahiko; Taguchi, Shigeo; Sato, Soichi; Surugaya, Naoki
Journal of Separation Science, 38(10), p.1807 - 1812, 2015/05
Times Cited Count:17 Percentile:54.1(Chemistry, Analytical)The extraction of Pu with tri--butyl phosphate (TBP) is performed using a glass microchip to evaluate the extraction rate. The parallel two-phase laminar flow is constructed in a microchannel by introducing plutonium nitrate solution and TBP diluted with -dodecane as aqueous and organic phase, respectively. It was found that extraction ratio of Pu increases with increasing the contact time of two phases. A numerical model based on the diffusion in the microchannel and the reaction at the interface was incorporated to evaluate the extraction rate. The experimental data points were subjected to least-squares fitting and the forward extraction rate of Pu(IV) was determined.