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Citation: XU Lixin, LI Peijie, LIU Weiwei, XU Yanyan, WANG Zhicai. Cr₂O₃/γ-Al₂O₃ Catalyzed Oxidation of Tetralin Toward α-Tetralone[J]. Chinese Journal of Applied Chemistry, ;2013, 30(11): 1304-1309. doi: 10.3724/SP.J.1095.2013.30059 shu

Cr₂O₃/γ-Al₂O₃ Catalyzed Oxidation of Tetralin Toward α-Tetralone

School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan 243002, China

Received Date: 24 January 2013
Revised Date: 26 March 2013

Cr₂O₃/γ-Al₂O₃ catalysts were prepared through the wetness impregnation method and characterized by XRD,UV-Vis DRS and TG-DTA. The effects of Cr loadings,catalyst calcination temperature,oxidation reaction temperature and the catalyst quantity on the catalytic oxidation of tetralin to α-tetralone were investigated. The results demonstrate that the dominant active specie of the catalysts is Cr₂O₃ with a small amount of CrO₃ highly dispersed on the surface of γ-Al₂O₃. A conversion of 50.1% of tetralin and a selectivity of 79.7% of α-tetralone are obtained over the 7.5% Cr₂O₃/γ-Al₂O₃ catalyst at 120℃ after 8 h oxidation. The as-obtained catalysts exhibit a good stability.
- tetralin,
- α-tetralone,
- oxidation,
- chromium catalyst,
- alumina
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Cr₂O₃/γ-Al₂O₃ Catalyzed Oxidation of Tetralin Toward α-Tetralone