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Hydroxylation of benzene and phenol in presence of vanadium grafted Beta and ZSM-5 zeolites

Paper ID Volume ID Publish Year Pages File Format Full-Text
52712 46882 2007 4 PDF Available
Title
Hydroxylation of benzene and phenol in presence of vanadium grafted Beta and ZSM-5 zeolites
Abstract

Vanadium grafted zeolites type Beta and ZSM-5 were investigated for direct oxidation of benzene to phenol and hydroxylation of phenol with hydrogen peroxide in acetonitrile media at 353 K. The introduction of vanadium was done by reductive solid state ion exchange. The morphological characterisation of samples and the stability of the vanadium sites were examined before and after the reaction by applying FTIR, UV–Vis techniques and reduction/oxidation cycles (TPR/TPO). The results proved that the vanadium sites had retained their multiple oxidation state when used in liquid phase oxidation at high vanadium atom efficiency for the reaction product.

Keywords
Benzene; Phenol; Hydroxylation; VBeta; VZSM-5
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Hydroxylation of benzene and phenol in presence of vanadium grafted Beta and ZSM-5 zeolites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 4, April 2007, Pages 693–696
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