Methylation of phenol over Degussa P25TiO(2)

Gandhe, A.R.; Fernandes, J.B.

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Methylation of phenol over Degussa P25TiO(2)

Gandhe, A.R.; Fernandes, J.B.

Source : Journal of Molecular Catalysis A-Chemical. 226(2); 2005; 171-177.

URI: http://dx.doi.org/10.1016/j.molcata.2004.10.035
http://irgu.unigoa.ac.in/drs/handle/unigoa/1713

Date: 2005

Document Type: Journal article

Abstract:

Degussa P25 TiO2 was evaluated as a catalyst for vapour phase methylation of phenol. It gave an optimum conversion of 32 percent at 450 degrees C and formed predominantly the ortho-, para- and meta-cresols. The activity selectivity profiles are discussed in terms of the acid-base properties of the catalyst and the BET surface areas. A new mechanism is proposed to explain the observed product selectivity.

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