Alkylation of phenol with methanol over mixed oxides of tin with some rare earth elements

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Alkylation of phenol with methanol over mixed oxides of tin with some rare earth elements

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Title: Alkylation of phenol with methanol over mixed oxides of tin with some rare earth elements
Author: Jyothi, T M; Rao, B S; Sugunan, S; Sreekumar,K
Abstract: Alkylation of phenol with methanol has been carried out over Sn-La and Sn-Sm mixed oxides of varying compositions at 623 K in a vapour phase flow reactor. It is found that the product selectivity is greatly influenced by the acid-base properties of the catalysts. Ortho-cresol formation is favoured over catalysts with weak acid sites whereas formation of 2,6-xylenol occurs in the presence of stronger acid sites. The cyclohexanol decomposition reaction and titrimetric method using Hammett indicators have been employed to elucidate the acid-base properties of the catalysts.
Description: Indian Journal of Chemistry Vol. 38A, December 1999, pp. 1253-1255
URI: http://dyuthi.cusat.ac.in/purl/2147
Date: 1999-12


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