WANG Hui, JIA Yong-fen, WEI Yan, LI Hui-rong, CONG Hai-feng, PAN Yong-jun. Extraction Kinetics of Technetium(Ⅶ) Between TBP-Kerosine and Nitric Acid Medium[J]. Journal of Nuclear and Radiochemistry, 2010, 32(4): 193-198.
    Citation: WANG Hui, JIA Yong-fen, WEI Yan, LI Hui-rong, CONG Hai-feng, PAN Yong-jun. Extraction Kinetics of Technetium(Ⅶ) Between TBP-Kerosine and Nitric Acid Medium[J]. Journal of Nuclear and Radiochemistry, 2010, 32(4): 193-198.

    Extraction Kinetics of Technetium(Ⅶ) Between TBP-Kerosine and Nitric Acid Medium

    • The extraction kinetic behaviors of technetium in TcO4-/HNO3/TBP-kerosine, TcO4-/HNO3-Zr/TBP-kerosine, TcO4-/HNO3-U/TBP-kerosine and TcO4-/HNO3-Zr-U/TBP-kerosine system were studied with a mini-sized Lewis cell. The extraction kinetic equations and apparent rate constants of TcO4- in these systems were calculated and the mechanism was discussed in this paper. In these systems, the rate of the extraction of Tc(Ⅶ) declines with the rise of temperature, and the apparent active energy is turned out to be minus value.
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