Promotion effect of Pt on Cr/MgO catalyst in the reaction of cyclohexanol and methanol to 2,6-dimethylphenol

Catalytic synthesis of 2,6-dimethylphenol (2,6-DMP) from methanol and cyclohexanol was achieved by using magnesium oxide-supported chromium oxide catalysts in one step. The activity of Cr/MgO catalysts was promoted by the addition of platinum. Both TPD method and infrared (IR) measurements were used to investigate catalysts. The promotion of Cr/MgO led to the improvement of the stability and to the increase in the adsorption of reactants, and therefore, to the enhancement of the catalytic activity of the reaction. (C) 2000 Elsevier Science B.V. All rights reserved.