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Adsorption properties of low-silica zeolite ZK-5

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

Abstract

Water vapor, methanol, and argon adsorption isotherms, as well as the heat of adsorption of ammonia, methanol, and carbon dioxide have been determined on zeolite types A, ZK-4, and ZK-5. The results are explained by the distribution and the bond lengths of cations in the zeolite crystal lattice. It was shown that the exchange of 10–15% of the Na+ ions with Li+ in zeolite ZK-5 leads to a deformation of the 8-membered ring impeding the diffusion of adsorbed molecules. Cations contained in the 8-membered ZK-5 zeolite ring are bound more strongly to the framework, than in zeolite NaA, resulting in their smaller adsorption capacity.

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Authors
  1. S. G. Izmailova
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  2. S. S. Khvoshchev
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  3. M. A. Shubaeva
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Additional information

I. V. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, 199164 St. Petersburg, Russia. Translated fromIzvestiya Akademii Nauk, Seriya Khimicheskaya, No. 11, pp. 2494–2500, November, 1992.

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Izmailova, S.G., Khvoshchev, S.S. & Shubaeva, M.A. Adsorption properties of low-silica zeolite ZK-5. Russ Chem Bull 41, 1960–1964 (1992). https://doi.org/10.1007/BF00863355

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  • DOI: https://doi.org/10.1007/BF00863355

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