Journal Volumes
Visitors
ALL : 873,422
TODAY : 687
ONLINE : 17
ALL : 873,422
TODAY : 687
ONLINE : 17
JOURNAL DETAIL
Catalytic Study of Iron, Aluminum, Vanadium and Cobalt Modified Titanium Silicalites-1 in the Hydroxylation of Benzene and Alkyl Benzene by Hydrogen Peroxide
Paper Type  |
Contributed Paper |
Title |
Catalytic Study of Iron, Aluminum, Vanadium and Cobalt Modified Titanium Silicalites-1 in the Hydroxylation of Benzene and Alkyl Benzene by Hydrogen Peroxide |
Author |
Pornnapa Kasemsiri, Kriangkrai Shenchunthichai, Patchanee Chammingkwanand Tharathon Mongkhonsi |
Email |
kae_en_39@hotmail.com |
|
Abstract:
This research studies catalytic properties of TS-1 modified Fe, Al, Co and V in the hydroxylation of benzene and alkyl benzene with hydrogen peroxide. The results show that adding Fe, Al, Co and V can increase the catalytic activity of TS-1 on the hydroxylation of benzene in the following order Co-TS-1 > V-TS-1 > Fe-TS-1 > Al-TS-1 > TS-1. Further investigation reveals that the added metals improve the performance of TS-1 by decreasing the adsorption of phenol on the TS-1 surface, thus prevent the blockage of the active site by the phenol formed. In addition, they also inhibit the decomposition of H2O2 , thus providing more H2O2 for the reaction. For the hydroxylation of toluene, it was found that the hydroxygroup can substitute at both ortho and para position producing o-cresol and p- resol respectively
|
|
Start & End Page |
178 - 187 |
Received Date |
2007-09-15 |
Revised Date |
|
Accepted Date |
2007-11-17 |
Full Text |
Download |
Keyword |
Titanium silicalite-1, hydroxylation, benzene, alkyl benzene |
Volume |
Vol.35 No.1 (JANUARY 2008) |
DOI |
|
SDGs |
|
| View:502 Download:200 | |
Copyrights © Since 2021 All Rights Reserved by Chiang Mai Journal of Science