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Ban, Yasutoshi; Kikutani, Yoshikuni*; Tokeshi, Manabu*; Morita, Yasuji
Journal of Nuclear Science and Technology, 48(10), p.1313 - 1318, 2011/10
Times Cited Count:28 Percentile:88.5(Nuclear Science & Technology)Extraction of Am(III) was performed at the interface of organic-aqueous two-phase flows in a microchannel having an asymmetric cross section. A solution of 3 mol/dm nitric acid containing Am(III) and octyl(phenyl)-N,N-diisobutylcarbamoylmethyl-phosphineoxide diluted with n-dodecane were introduced into the microchannel as the aqueous phase and the organic phase, respectively. The two phases formed a stable two-layer flow with an interface parallel to the sidewall of the microchannel, and were separated from each other at the divergence point of the microchannel. The extraction reaction of Am(III) proceeded at the interface of the two phase, and reached equilibrium state while the two phases passed through the microchannel.
Ban, Yasutoshi; Morita, Yasuji; Kikutani, Yoshikuni*; Harada, Masayuki*; Ikeda, Yasuhisa*; Tokeshi, Manabu*
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Extraction of Np with TODGA has been performed using microchemical chips which have micro channels of several 10's m in depth and several 100's m in width as reaction field in a glass plate (LWT; 70 mm 30 mm 1.4 mm). By using a microchannel of unsymmetrical shape and adjusting back pressure to the aqueous phase, Nd was effectively extracted at laminar flow interface between the organic phase and the aqueous phase, and the organic phase after Nd extraction separated from the aqueous phase very well.