Oxidative Hydroxylation of Benzene and Toluene by Nitrous Oxide Over Fe-Containing ZSM-5 Zeolites |
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| Authors: | Béla Imre János Halász Krisztina Frey Károly Varga and Imre Kiricsi |
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| Institution: | (1) Department of Applied and Environmental Chemistry, University of Szeged, Rerrich B. tér 1, H-6720 Szeged, Hungary |
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| Abstract: | The gas-phase partial oxidation of benzene and toluene to phenol and to cresols over Fe-containing ZSM-5 zeolites prepared by various methods was studied using N2O as oxidant. Over FeZSM-5 synthesized by either isomorphous substitution or ion exchange the phenol selectivity reached nearly 100% at 573 K, however, only 25-30% cresol (mainly p-cresol) selectivity was observed in the oxidation of toluene because of the formation of benzaldehyde and benzoic acid in the fast oxidation of the methyl group. |
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| Keywords: | Partial oxidation benzene toluene FeZSM-5 phenol cresols |
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