Ultrafast synthesis of *BEA zeolite without the aid of aging pretreatment

作者：Zhu Jie; Liu Zhendong; Sukenaga Sohei; Ando Mariko; Shibata Hiroyuki; Okubo Tatsuya^*; Wakihara Toru^*

来源：Microporous and Mesoporous Materials, 2018, 268: 1-8.

DOI：10.1016/j.micromeso.2018.04.012

• Zeolite
• Ultrafast synthesis
• *BEA zeolite
• Aging

The present study focuses on the ultrafast synthesis of *BEA zeolite, which constitutes one of the most industrially important zeolites. A pure *BEA phase was successfully synthesized within 10 min at 210 degrees C by carefully tuning the composition of the initial reactant mixture. To date, the ultrafast synthesis of several industrially important zeolites is achieved with the aid of aging pretreatment, followed by high temperature hydrothermal treatment. In this study, we first demonstrated the 10-min synthesis of *BEA zeolite employing organic structure-directing agents (OSDAs), without any aging process. The employment of sealed pipe reactor in conjunction with the optimization of chemical composition of starting materials are critical in obtaining pure *BEA phase in a short time. The fast-synthesized *BEA zeolite possesses properties that are similar to those synthesized by conventional hydrothermal synthesis methods in terms of crystallinity and micropore volume. A comprehensive investigation on the effects of various parameters on the seed-assisted crystallization of *BEA zeolite was also studied.

• 出版日期2018-9-15