Process for the preparation of a vanadia SCR-catalyst supported on titania

摘要

The invention concerns a process for the preparation of a vanadia SCR-catalyst supported on titania. The process is characterized in that the catalyst is prepared by dispersing titania in an ammonium metavanadate (NH₄VO₃) solution, adjusting the pH of the solution to a value of 7.0-7.1 by NH₄OH and HNO₃, stirring the resulting suspension for a time sufficient for complete adsorption of the vanadium compound on titania, filtering the suspension and drying and calcining the resulting catalyst compound.