Synthesis and Study of Catalysts of Cracking on the Basis of Heteropolyacids

The work aim was the preparation of cracking catalysts on the base of the natural zeolite from the Shankanay field (Kazakhstan), modified with mineral acids, organic acids and heteropolyacids (HPA); the research of the catalysts by physicochemical methods of investigation. Accordingly to IR spectros...

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Bibliographic Details
Published in:Oriental journal of chemistry 2017-12, Vol.33 (6), p.2803-2809
Main Authors: Kh. Tashmukhambetova, Zh, Zhakirova, N. K., Sassykova, L. R., Kadirbekov, K. A., Aubakirov, Y. A., Zhumakanova, A. S., Nalibayeva, A.M.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Chemical synthesis
Hydration
Hydrocarbons
Infrared radiation
Inorganic acids
Molybdenum
Organic acids
Oxidation
Polymerization
Zeolites
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Summary:The work aim was the preparation of cracking catalysts on the base of the natural zeolite from the Shankanay field (Kazakhstan), modified with mineral acids, organic acids and heteropolyacids (HPA); the research of the catalysts by physicochemical methods of investigation. Accordingly to IR spectroscopic analysis during decationization and dealumination, the natural zeolite retains its crystalline structure. Presumably formation of a bond of HPA with zeolite proceeds at modifying the chosen zeolite by HPA. It was found from the EM data the high degrees of dispersion and distribution of particles of PW12-HPA on the surface of clinoptilolite. EM images of a thin layer of the catalyst on the base of PW12-HPA and zeolite activated by an acid, show spots with the various magnitudes and different shapes and contrasts. The experiments on EDAX-spectrometer demonstrate that these spots have the same compositions that are identical to the PW12-HPA.
ISSN:0970-020X
2231-5039
DOI:10.13005/ojc/330613