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Kinetic studies on the solvent extraction of uranium(VI) from phosphoric acid solution with HDEHP using laser-induced optical fiber fluorimetry

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Abstract

Laser-induced optical fiber fluorimetry has been first used to analyze uranium(VI) concentration in the kinetic studies on the extraction of uranium(VI) between 0.5 mol/l H3PO4 solution and HDEHP-cyclohexane system with a Lewis cell. The effects of stirring speed, temperature and concentrations of uranium(VI) and HDEHP on the rate of extraction were examined. These data show that the extraction rate of uranium(VI) in this system is controlled by the chemical reaction at the interface. The rate equations and the rate constants of forward and reverse extraction are obtained. The mechanism of the extraction is discussed.

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Authors and Affiliations

  1. Department of Nuclear Science, Fudan University, Shanghai, (The People's Republic of China)

    Jia Wei-Jie, Zhou Zu-Min, He A-Di, Wang Zhi-Lin & Chin Chi-Tsung

Authors
  1. Jia Wei-Jie
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  2. Zhou Zu-Min
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  3. He A-Di
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  4. Wang Zhi-Lin
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  5. Chin Chi-Tsung
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Wei-Jie, J., Zu-Min, Z., A-Di, H. et al. Kinetic studies on the solvent extraction of uranium(VI) from phosphoric acid solution with HDEHP using laser-induced optical fiber fluorimetry. Journal of Radioanalytical and Nuclear Chemistry, Articles 130, 187–194 (1989). https://doi.org/10.1007/BF02037712

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  • DOI: https://doi.org/10.1007/BF02037712

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