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Dynamics of sorption in the case of S-shaped isotherms

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

Conclusions

  1. 1.

    The dynamics of sorption was considered in the case of various types of S-shaped isotherms for external and internal diffusion kinetics of sorption.

  2. 2.

    Ar exact solution was obtained for the equilibrium dynamics without the consideration of longitudinal diffusion.

  3. 3.

    Approximate solutions, reduced to a superposition of the solutions correct for the sorption isotherms of the type of Langmuir equations, the exact solution of which is realized on an electronic computer, were proposed in the external and internal diffusion regions.

  4. 4.

    A method was proposed for the determination of parameters of the isotherms, of which the solution for an S-shaped isotherm is made up.

The proposed method is confirmed by experimental data.

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Literature cited

  1. M. M. Senyavin, R. N. Rubinshtein, E. V. Venitsianov, N. K. Galkina, I. V. Komarova, and V. A. Nikashina, Fundamentals of the Theory of Optimization of Ion Exchange Processes [in Russian], Nauka (1972).

  2. R. N. Rubinshtein, Materials of the Third All-Union Conference on Adsorption [in Russian], Nauka (1973).

  3. S. G. Mairanovskii, Catalytic and Kinetic Waves in Polarography [in Russian], Nauka (1966).

  4. V. A. Nikashina and B. I. Volkov, in: The Theory of Ion Exchange and Chromatography [in Russian], Nauka (1968), p. 15.

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Authors and Affiliations

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

    R. N. Rubinshtein, A. M. Sorochan, V. A. Alekseenko & A. K. Kunbazarov

Authors
  1. R. N. Rubinshtein
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  2. A. M. Sorochan
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  3. V. A. Alekseenko
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  4. A. K. Kunbazarov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1461–1466, July, 1973.

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Rubinshtein, R.N., Sorochan, A.M., Alekseenko, V.A. et al. Dynamics of sorption in the case of S-shaped isotherms. Russ Chem Bull 22, 1421–1425 (1973). https://doi.org/10.1007/BF00930030

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  • DOI: https://doi.org/10.1007/BF00930030

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