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Heats of adsorption of CO2 and NH3 on zeolites type a and ZK-4 with doubly charged cations

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

Conclusions

  1. 1.

    Most Ca2+ ions in type A and ZK-4 zeolites are less active adsorption sites with respect to molecules of CO2 than the Na+ ions of the corresponding Na zeolites.

  2. 2.

    The heats of adsorption of NH3 on Ca zeolites are higher than on Na zeolites.

  3. 3.

    Substitution of Ca2+ ions by Mg2+ ions in type A zeolites weakly affects the heats of adsorption of NH3, but results in a sharp decrease in the heats of adsorption of CO2.

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Authors and Affiliations

  1. I. V. Grebenshchikov Institute of Silicate Chemistry, Academy of Sciences of the USSR, Leningrad

    A. V. Zverev & S. S. Khvoshchev

Authors
  1. A. V. Zverev
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  2. S. S. Khvoshchev
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 7–12, January, 1989.

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Zverev, A.V., Khvoshchev, S.S. Heats of adsorption of CO2 and NH3 on zeolites type a and ZK-4 with doubly charged cations. Russ Chem Bull 38, 1–5 (1989). https://doi.org/10.1007/BF00953687

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  • DOI: https://doi.org/10.1007/BF00953687

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