KINETICS OF THE ALKYLATION OF PHENOL WITH METHANOL OVER MAGNESIUM-ALUMINUM CALCINED HYDROTALCITES

Authors
VELU S SWAMY CS
Citation
S. Velu et Cs. Swamy, KINETICS OF THE ALKYLATION OF PHENOL WITH METHANOL OVER MAGNESIUM-ALUMINUM CALCINED HYDROTALCITES, Applied catalysis. A, General, 145(1-2), 1996, pp. 225-230
Citations number
13
Categorie Soggetti
Chemistry Physical","Environmental Sciences
Journal title
Applied catalysis. A, General → ACNP
ISSN journal
0926860X
Volume
145
Issue
1-2
Year of publication
1996
Pages
225 - 230
Database
ISI
SICI code
0926-860X(1996)145:1-2<225:KOTAOP>2.0.ZU;2-2
Abstract
Vapour phase alkylation of phenol with methanol over magnesium-alumini um calcined hydrotalcites (MgAl-CHT) with an Mg/Al atomic ratio of 3-1 0 has been investigated in detail and reported previously. This study concerns the evaluation of the kinetic parameters such as the activati on energy (E(a)) and Arrhenius frequency factor (In A(0)) for the disa ppearance of phenol employing the Power law equation assuming pseudo f irst order kinetics. The kinetic parameters were found to be in good a greement with the specific activity of the catalysts. The existence of the compensation effect between E(a) and In A(0) has been tested.