Patent ID: 9656238
Date: 2017-05-23
CPC Classifications: B01D,B01J,C01B,F01N

Claim:
1. An Fe (II)-substituted beta-type zeolite having an SiO2/Al2O3 ratio of equal to or more than 7 but less than 10 and obtained by being subjected to ionic exchange with Fe(II) ions, and wherein an Fe(II) loading amount is 0.001 to 0.25 mmol/g with respect to the Fe (II)-substituted beta-type zeolite, a BET specific surface area is 300 to 600 m2/g, a micropore specific surface area is 270 to 500 m2/g, and a micropore volume is 0.14 to 0.25 cm3/g.