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Studies on ion exchange equilibria and kinetics: V. UO 2+2 −Na+−H+ ternary cation exchange kinetics

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Abstract

The kinetics of particle-diffusion controlled ion exchange in the ternary system of cations UO 2+2 −Na+−H+−001×7 strong acidic resin has been studied. In the [R−H+]/(Na++UO 2+2 ) system, the change of the amount of Na+ in the resin phase with time showed a high peak. In the [R−Na+]/(H++UO 2+2 ) system, the change of the amount of H+ in the resin phase with time also showed a high peak. In the [R2−UO 2+2 ]/(H++Na+) system, the change of amount of H+ in the resin phase with time showed merely a small peak. This kinetic character of the ternary ion exchange system in the finite solution volume has been analyzed according to the Nerst-Planck equation, and on the whole, the trend of the experimental results is consistent with the resulting numerical solution of the set of Nerst-Planck equations.

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Authors and Affiliations

  1. Department of Modern Physics, Lanzhou University, 730000, Lanzhou, (P. R. China)

    Tao Zuyi, Chang Zheng, Zhao Aimin & Tong Wengong

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  1. Tao Zuyi
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  2. Chang Zheng
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  3. Zhao Aimin
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  4. Tong Wengong
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Zuyi, T., Zheng, C., Aimin, Z. et al. Studies on ion exchange equilibria and kinetics: V. UO 2+2 −Na+−H+ ternary cation exchange kinetics. Journal of Radioanalytical and Nuclear Chemistry, Articles 181, 351–361 (1994). https://doi.org/10.1007/BF02037641

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  • DOI: https://doi.org/10.1007/BF02037641

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