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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 56, Number 5
JKCSEZ 56(5)
October 20, 2012

Title	Honeycomb Monolith Coated with Mo(VI)/ZrO2 as a Versatile Catalyst System for Liquid Phase Transesterificaiton
Author	N Thimmaraju, S R Pratap, M Senthilkumar, S Z Mohamed Shamshuddin*
Keywords	Honeycomb monolith, Mo(VI)/ZrO₂, Transesterification, Salol, Solid acids
Abstract	Solid acid Mo(VI)/ZrO2 with 2-10% Mo(VI) was coated on honeycomb monoliths by impregnation method. These catalytic materials were characterized by BET, NH3-TPD/n-butylamine back titration, PXRD and SEM techniques. Phenyl salicylate (Salol) was synthesized via transesterification of methyl salicylate and phenol over these catalytic materials. An excellent yield (91.0%) of salol was obtained under specific reaction conditions. The effect of poisoning of acid sites of the catalytic material by adsorbing different bases and its effect on total surface acidity, powder XRD phases and catalytic activity was studied. A triangular correlation between the surface acidity, powder XRD phases and catalytic activity of Mo(VI)/ZrO2 was observed. The thermally regenerated catalytic material was reused repeatedly with a consistent high yield of salol.
Page	563 - 570
Full Text	PDF

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