Issue 7, 2001
From the journal:

Journal of Materials Chemistry

Rajib Bandyopadhyay,a   Ranjeet Kaur Ahedi,a   Yoshihiro Kubota,a   Masami Ogawa,a   Yasutomo Goto,b   Yoshiaki Fukushimac  and  Yoshihiro Sugi*a  

* Corresponding authors

a Department of Chemistry, Faculty of Engineering, Gifu University, Gifu, Japan
E-mail: sugi@apchem.gifu-u.ac.jp
Fax: +81-58-293-2597
Tel: +81-58-293-2597

b Japan Chemical Innovation Institute, 1-3-5 Kandajimbocho Chiyoda, Tokyo, Japan

c Toyota Central R&D Labs., Inc., Nagakute, Aichi, Japan

Abstract

Synthesis of high-silica [Al]-SSZ-31 zeolite by a dry-gel conversion method was performed and the catalyst was tested for the isopropylation of biphenyl with propylene. In the case of the small-scale synthesis, the product phase was found to be dependent on the alkali concentration of the initial gel, and a phase change from BEA to SSZ-31 to MFI was observed with time at the optimum alkali concentration. In the case of the large-scale synthesis, temperature had a profound effect on the crystallization of SSZ-31. A phase transformation from BEA to SSZ-31 was observed when the crystallization temperature was changed from 150 °C to 175 °C. [Al]-SSZ-31 was active in the isopropylation of biphenyl and selectively catalyzed the production of the least bulky isomers. Biphenyl conversion decreased with increasing silica to alumina ratio while selectivity remained nearly constant. Triisopropyl isomer yields were high in the case of lower silica to alumina ratios.

Graphical abstract: Synthesis of high-silica [Al]-SSZ-31 by a steam-assisted conversion method and its catalytic performance in the isopropylation of biphenyl

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B100975N
Article type
Paper
Submitted
29 Jan 2001
Accepted
11 Apr 2001
First published
23 May 2001

J. Mater. Chem., 2001,11, 1869-1874

Permissions

Request permissions

Synthesis of high-silica [Al]-SSZ-31 by a steam-assisted conversion method and its catalytic performance in the isopropylation of biphenyl

R. Bandyopadhyay, R. K. Ahedi, Y. Kubota, M. Ogawa, Y. Goto, Y. Fukushima and Y. Sugi, J. Mater. Chem., 2001, 11, 1869 DOI: 10.1039/B100975N

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements