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Investigation of the structure and thermal stability of zeolites of types A, X, and Y, containing trivalent chromium

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

Conclusions

  1. 1.

    The properties of chromium-containing zeolites of types A, X, and Y, produced by ion exchange, were investigated by methods of differential thermal and differential thermovolumetric analyses and reflection spectroscopy.

  2. 2.

    Chromium is contained in zeolites in the form of octahedral aqua complexes [Cr(H2O)6]3+, which create steric hindrances to exchange in types A and X zeolites.

  3. 3.

    The dehydration of CrNaA and CrNaX zeolites is accompanied by a gradual breakdown of their structures. CrNaY zeolite is not decomposed in this case, and after the breakdown of the aqua complexes, the Cr3+ ions apparently penetrate into the cubooctahedra of the crystal lattice.

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences of the USSR, USSR

    Yu. S. Khodakov, I. D. Mikheikin, V. S. Nakhshunov, V. A. Shvets, V. B. Kazanskii & Kh. M. Minachev

Authors
  1. Yu. S. Khodakov
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  2. I. D. Mikheikin
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  3. V. S. Nakhshunov
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  4. V. A. Shvets
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  5. V. B. Kazanskii
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  6. Kh. M. Minachev
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No.3, pp. 523–529, March, 1969.

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Khodakov, Y.S., Mikheikin, I.D., Nakhshunov, V.S. et al. Investigation of the structure and thermal stability of zeolites of types A, X, and Y, containing trivalent chromium. Russ Chem Bull 18, 465–470 (1969). https://doi.org/10.1007/BF00906959

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  • DOI: https://doi.org/10.1007/BF00906959

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