Patent ID: 8716172

Claim:
A process for the preparation of a catalyst composition usable for selective catalytic reduction of exhaust gases, comprising: providing a solid support comprising TiO 2 in an amount of at least 70 wt. %, WO 3 in an amount of 5-20 wt. %, and optionally SiO 2 in an amount of up to 15 wt. %; contacting the solid support with a vanadate (REVO 4 ) of at least one rare earth metal (RE) selected from the group consisting of Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Er and Yb to form a slurry comprising the solid support and vanadate (REVO 4 ); drying the slurry to form a dried powder; and calcining the dried powder to yield a calcined powder comprising the catalyst composition usable for selective catalytic reduction of exhaust gases.