Strong Basic Sites Accelerate the Deactivation of Oxide Catalysts Supported on FSM-16 for the Vapor-Phase Beckmann Rearrangement of Cyclohexanone Oxime

The acidic and basic properties of FSM-16-supported Al2O3, ZnO or CdO were determined by the temperature-programmed desorption (TPD) of ethylamine. Relationship of the deactivation rate of the catalyst during the vapor-phase Beckmann rearrangement with the acidic and basic properties was studied. It was found that the deactivation was accelerated with an increase in the amount of the strong basic sites.