Patent ID: 8809217

Claim:
A catalyst for selective catalytic reduction of NO x comprising: a. one or more transition metals selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir, Pt, and mixtures thereof, and b. a support comprising a molecular sieve having at least one intergrowth phase consisting of an aluminosilicate, a silico-aluminophosphate, or aluminosilicate/silico-aluminophosphate combination having two different small-pore, three-dimensional framework structures, wherein the first framework structure is AEI and the second framework structure is CHA, wherein each framework structure in said intergrowth has a maximum of eight ring members, wherein the one or more transition metals are disposed inside the pores of the molecular sieve, on the external surface of the molecular sieve, or both inside the pores and on the external surface of the molecular sieve, and wherein said transition metal is present in an amount of about 0.01 to about 6 weight percent, based on the total weight of the molecular sieve.