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Hydroxylation of benzene over TS-PQ™ catalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
43147 45957 2009 9 PDF Available
Title
Hydroxylation of benzene over TS-PQ™ catalyst
Abstract

The direct hydroxylation of benzene with hydrogen peroxide was studied over a MFI-structure titanium-silica based catalyst denoted as TS-PQ™ (the trade mark of PQ Corporation). The reaction was carried out in a three phase slurry reactor system under atmospheric pressure. The catalytic activity of this catalyst was found to be higher than that of the conventionally synthesized TS-1 under the same conditions. These findings can be correlated to enlarged BET surface, larger pore diameter and higher amount of mesopores in the material as well as defects of the zeolitic structure. The effects of temperature, stirring speed, molar ratio of benzene/H2O2, volume of added water, and catalyst weight on catalytic performance were investigated. Under mild conditions, such as 343 K and atmospheric pressure, an excellent overall phenol yield could be achieved over TS-PQ™.

Graphical abstractHydroxylation of benzene to phenol using hydrogen peroxide as oxidant was studied over MFI structure titanium-silica based catalyst denoted here as TS-PQTM catalyst. The catalyst showed a higher conversion compared to a well known TS-1 catalyst in three phase system. Under mild conditions, TS-PQTM exhibited excellent overall phenol yield with more than 90% H2O2 conversion to organic compounds.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Benzene; Hydroxylation; Titanium-silica based catalyst; Hydrogen peroxide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 352, Issues 1–2, 15 January 2009, Pages 1–9
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us