BETA ZEOLITE AND METHOD FOR PRODUCING SAME

摘要

The present invention provides a beta zeolite that is useful as a catalyst, adsorbent agent, or the like, and that is both microporous and mesoporous. The beta zeolite is characterized by (i) the SiO2/Al2O3 ratio being 8-30, and the SiO2/ZnO ratio being 8-1000, (ii) the micropore surface area being 300-800 m2/g, (iii) the micropore volume being 0.1-0.3 cm3/g, and (iv) having mesopores having, in the state as synthesized, a diameter of 2-6 nm and a volume of 0.001-0.3 cm3/g. The beta zeolite is favorably produced by means of adding and reacting a zinc silicate beta zeolite as a seed crystal with a reaction mixture containing a silica source, an alumina source, an alkali source, and water.

主权项

1. A beta zeolite in which:
(i) a SiO2/Al2O3 ratio ranges from 8 to 30, and a SiO2/ZnO ratio ranges from 8 to 1000; (ii) a micropore surface area ranges from 300 to 800 m2/g; (iii) a micropore volume ranges from 0.1 to 0.3 cm3/g; and (iv) in an as-synthesized state, a diameter of a mesopore ranges from 2 to 6 nm, and a volume of the mesopore ranges from 0.001 to 0.3 cm3/g.