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Kinetics of cation exchange on hetero-framework microporous titano- and zirconosilicates

  • Kinetics and Mechanism of Chemical Reactions. Catalysis
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Abstract

The kinetics of cation-exchange reactions of amorphized and partially decationized mineral terskite (A-terskite) with aqueous solutions of Cs+, K+, Sr2+, and Cu2+ salts (including competitive reactions in the presence of two different cations in the solution), as well as the cation exchange between some other microporous titano- and zirconosilicates (kuzmenkoite-Mn, penkvilksite, sitinakite, zorite, gaidonnayite and zirfesite) and Cs+-bearing solutions, are studied using calorimetry. The total heat release in these reactions is measured. All the studied processes obey the first-order kinetic law. Samples preliminary decationized and amorphized to various degrees, as well as zorite, show highest activity in cation-exchange processes.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow oblast, Russia

    N. V. Chukanov & A. I. Kazakov

  2. Moscow State University, Moscow, Russia

    I. V. Pekov & A. A. Grigor’eva

Authors
  1. N. V. Chukanov
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  2. A. I. Kazakov
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  3. I. V. Pekov
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  4. A. A. Grigor’eva
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Correspondence to N. V. Chukanov.

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Original Russian Text © N.V. Chukanov, A.I. Kazakov, I.V. Pekov, A.A. Grigor’eva, 2011, published in Khimicheskaya Fizika, 2011, Vol. 30, No. 4, pp. 50–55.

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Chukanov, N.V., Kazakov, A.I., Pekov, I.V. et al. Kinetics of cation exchange on hetero-framework microporous titano- and zirconosilicates. Russ. J. Phys. Chem. B 5, 278–283 (2011). https://doi.org/10.1134/S1990793111020308

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  • DOI: https://doi.org/10.1134/S1990793111020308

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