Conclusions
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1.
The interaction of propylene with H-forms of zeolites of the type of mordenite, erionite, and Y proceeds according to an acid-base mechanism with the OH groups as carriers of Brönsted acidity. In the case of H-forms of mordenite, the hydroxonium ion also participates in the interaction.
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2.
On the H-form of mordenite, characterized by increased acidity, there is a reaction of condensation of propylene with the formation of polymer structures; polymerization does not occur on dealuminized samples.
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3.
The adsorption of C3H6 on NaM proceeds according to a redox mechanism with the formation, in particular, of an acetylene complex. In the presence of hydrogen at 200–250° there is a hydrogenation of propylene to propane.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1942–1947, September, 1975.
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Lafer, L.I., Nabiev, B.A. & Yakerson, V.I. IR spectra of catalysts and adsorbed molecules Communication 20. Adsorption of propylene on modified type Y zeolites, erionite, and mordenite. Russ Chem Bull 24, 1823–1828 (1975). https://doi.org/10.1007/BF00930144
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DOI: https://doi.org/10.1007/BF00930144