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Studies on ion exchange equilibria and kinetics

II. UO 2+2 −H+ cation exchange kinetics

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Abstract

The kinetics of cation exchange 2RH+UO 2+2 =R2UO2+2H+ for the forward and reverse reaction with strongly acidic 001×7 resin has been studied. It was found experimentally that at low concentration, the forward exchange rate is controlled by film diffusion and at high concentration by particle diffusion. On the contrary, the reverse exchange rate is controlled by particle diffusion at any concentration. The integral particle inter-diffusion coefficients for forward and reverse exchange have been calculated.

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Authors and Affiliations

  1. Department of Modern Physics, Lanzhou University, Lanzhou, The People's Republic of China

    Tao Zuyi, Tong Wengong & Chen Xingqu

Authors
  1. Zhao Aimin
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  2. Tao Zuyi
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  3. Tong Wengong
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  4. Chen Xingqu
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Aimin, Z., Zuyi, T., Wengong, T. et al. Studies on ion exchange equilibria and kinetics. Journal of Radioanalytical and Nuclear Chemistry, Articles 116, 49–61 (1987). https://doi.org/10.1007/BF02037210

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  • DOI: https://doi.org/10.1007/BF02037210

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