Patent ID: 7758847

Claim:
A phosphorus- and metal components-containing MFI-structured molecular sieve having a formula expressed in an anhydrous form and on a basis of oxide weight, as follows: (0˜0.3) Na 2 O (0.5˜5.5) Al 2 O 3 (1.3˜10) P 2 O 5 (0.7˜15) M1 x O y (0.01˜5) M2 m O n (70˜97) SiO 2 , wherein M1 is a metal selected from the group consisting of Fe, Co, and Ni; x represents the number of atoms of M1; y represents a number required by an oxidation state of M1; M2 is selected from the group consisting of Zn, Mn, Ga, and Sn; m represents the number of atoms of M2; and n represents a number required by an oxidation state of M2.