| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 76901 | Microporous and Mesoporous Materials | 2006 | 7 Pages |
Abstract
The synthesis of ∗BEA zeolite was performed using two kinds of starting materials; dealuminated FAU zeolite and amorphous-silica/γ-alumina. When the amount of tetraethylammonium hydroxide (TEAOH) added as a structure-directing agent was small, a large difference in the crystallization rate was clearly observed, namely faster for FAU zeolite. This result strongly suggests that FAU zeolite is a useful starting material for the synthesis of ∗BEA zeolite. Moreover, the conversion of FAU zeolite into ∗BEA zeolite strongly depended upon the Si/Al ratio of the starting FAU zeolite. The ratio of TEAOH/SiO2 in the starting synthesis gel could be reduced to 0.1–0.15.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Hery Jon, Keisuke Nakahata, Baowang Lu, Yasunori Oumi, Tsuneji Sano,