Abstract
The liquid phase oxidation of cumene was investigated with Cr2O3, MnO2 and Fe2O3 catalysts in the temperature range of 70–90 °C. It was observed that a critical hydroperoxide to catalyst ratio existed, below which the reaction did not proceed.Detailed studies of the concentrations of the main products of oxidation of cumene along with the effect of catalyst weight, and hydrocarbon concentration on the rate of oxidation were conducted employing these catalysts. The apparent activation energy for the overall oxidation was calculated to be 9.8 kcal/g mole.A reaction mechanism has been proposed and a rate expression derived is in good agreement with the experimental data.
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