Patent ID: 7767611
Filing Date: 2010-08-03
Classification: B01J,C01B,C10G

Abstract:
1. A modified zeolite beta, characterized in that it is a zeolite beta modified with phosphorus and transition metal(s) M, having an anhydrous chemical formula by weight % of the oxides, of (0-0.3)Na 2 O.(0.5-10)Al 2 O 3 .(1.3-10)P 2 O 5 .(0.7-15)M x O y .(70-97)SiO 2 , wherein said transition metal M is one or more selected from the group consisting of Fe, Co, Ni, Cu, Mn, Zn and Sn, x is the number of the atoms of said transition metal M, and y is a number that meets with the requirement of the oxidation state of said transition metal M.