Acid Properties of the Surface of Zn-B-P/[gamma]-[Al.sub.2][O.sub.3]/Al Catalysts and Their Activity in Microwave-Stimulated Reaction of Diethylamine Acylation with m-Toluic Acid

Acid Properties of the Surface of Zn-B-P/[gamma]-[Al.sub.2][O.sub.3]/Al Catalysts and Their Activity in Microwave-Stimulated Reaction of Diethylamine Acylation with m-Toluic Acid

The acid-base properties of Zn-B-P/[gamma]-[Al.sub.2][O.sub.3]/Al catalysts for the direct acylation of diethylamine with m-toluic acid have been studied using ammonia temperature-programmed desorption, probe adsorption, and IR spectroscopy techniques, the catalysts having been synthesized and teste...

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Bibliographic Details
Published in:Petroleum chemistry Vol. 57; no. 12; p. 1081
Main Authors: Muradova, P.A, Zulfugarova, S.M, Tretyakov, V.F, Talyshinskii, R.M, Gasankulieva, N.M, Litvishkov, Yu.N
Format: Journal Article
Language:English
Published: Springer 01-12-2017
Subjects:
Acylation
Adsorption
Ammonia
Analysis
Catalysts
Cytokinins
Phenylacetic acid
Radiation (Physics)
Zinc compounds
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Summary:The acid-base properties of Zn-B-P/[gamma]-[Al.sub.2][O.sub.3]/Al catalysts for the direct acylation of diethylamine with m-toluic acid have been studied using ammonia temperature-programmed desorption, probe adsorption, and IR spectroscopy techniques, the catalysts having been synthesized and tested under conditions of microwave-assisted thermal treatment. A correlation between the activity of the microwave-absorbing catalysts in the target N,N-diethyl-m-toluamide formation reaction and the concentration of acid sites of medium strength on the surface of the samples has been revealed. It has been shown that the main reason behind the higher activity of Zn-B-P/[gamma]-[Al.sub.2][O.sub.3]/Al catalysts prepared under conditions of the thermal action of microwave field is the formation of a more developed active surface characterized by a prevalence of medium acid sites. Keywords: microwave radiation, acylation, diethylamine, m-toluic acid, N,N- diethyltoluamide, heterogeneous catalyst, surface acidity, microwave stimulation, activity DOI: 10.1134/S096554411712009X
ISSN:0965-5441
DOI:10.1134/S096554411712009X