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The limiting-stage method in the dynamics of sorption processes. I. Regions of influence of internal and longitudinal diffusion in the case of dynamics limited by external diffusion kinetics

  • Physical Chemistry
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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The comparison of the characteristic times of the kinetic stages has led to the determination of the limiting stage of a sorption process.

  2. 2.

    In the case of dynamics limited by external diffusion, the limits of influence of longitudinal and internal diffusion have been established. The widths of these zones as functions of the sorption parameters have been determined.

  3. 3.

    Approximate solutions have been obtained for the zones of influence of the nonlimiting stages by using the small-parameter approach.

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Authors and Affiliations

  1. V. I. Vernadskii Institute of Geochemistry and Analytical Chemistry, Academy of Sciences of the USSR, Moscow

    E. V. Venitsianov

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  1. E. V. Venitsianov
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1709–1713, August, 1980.

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Venitsianov, E.V. The limiting-stage method in the dynamics of sorption processes. I. Regions of influence of internal and longitudinal diffusion in the case of dynamics limited by external diffusion kinetics. Russ Chem Bull 29, 1191–1195 (1980). https://doi.org/10.1007/BF00950553

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  • DOI: https://doi.org/10.1007/BF00950553

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