Microwave Heating in the Hydrogen Peroxide Oxidation of Benzene on Zeolite Catalysts

Abstract

In this paper benzene hydroxylation with hydrogen peroxide (H2O2) in the presence of the titan-silicates-zeolites was studied. The initial catalyst, HZSM-5 zeolite type was treated to obtain both cobalt-and titan-silicates—zeolite. These improved catalysts were also used for oxidation. To obtain reaction temperature heating was made by conventional techniques and by microwave treatment. From this research it was concluded that reaction temperature is a very important parameter to keep a proper equilibrium between the decomposition rate of hydrogen peroxide and the oxidation rate ofaromatic compound. It was also found that microwaves affect the reaction selectivity.