Vol. 11 No. 2 (2012): Mapana Journal of Sciences
Research Articles

Liquid Phase Benzylation of Toluene over Modified Titania Catalysts

  • Sunaja Devi K R,
  • Sugunan S
Sunaja Devi K R
Department of Chemistry, Christ University, Hosur Road, Bangalore 560029, India.
Sugunan S
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi-22, India.
DOI: https://doi.org/10.12723/mjs.21.3

Published 2021-08-27

Keywords

  • Alkylation,
  • Friedel-Crafts reaction,
  • Sol-gel method,
  • Titania,
  • iron loaded sulfated titania

Copyright (c) 2012

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Abstract

Titania, sulfated titania and a series of iron loaded sulfated titania catalyst with different iron loadings (39 %) are prepared by sol-gel method and calcined at 500°C. Anatase is found to be the active phase with crystallite size in the nano range. All the prepared catalysts are found to be stable up to 700°C. Acidity is measured using spectrophotometric monitoring of adsorption of perylene, thermogravimetric desorption of 2,6-dimethylpyridine and temperature programmed desorption of ammonia. The activities of the catalysts were tested for liquid phase Friedel-Crafts benzylation of toluene with benzyl chloride. It has been concluded that Lewis acid sites are responsible for the reaction.

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