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Liquid phase oxidation of toluene to benzaldehyde with molecular oxygen over copper-based heterogeneous catalysts
Wang, F; Xu, J; Li, XQ; Gao, J; Zhou, LP; Ohnishi, R; Xu J(徐杰); Xu J(徐杰)
关键词Benzaldehyde C-h Bond Activation Heterogeneous Catalysis Liquid Phase Molecular Oxygen Toluene
刊名ADVANCED SYNTHESIS & CATALYSIS
2005-12-01
DOI10.1002/adsc.200505107
347期:15页:1987-1992
收录类别SCI ; CCR
文章类型Article
部门归属2
项目归属204
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Applied ; Chemistry, Organic
研究领域[WOS]Chemistry
关键词[WOS]SELECTIVE OXIDATION ; HYDROCARBONS ; RADICALS ; CRESOL
英文摘要We conducted the liquid phase oxidation of toluene with molecular oxygen over heterogeneous catalysts of copper-based binary metal oxides. Among the copper-based binary metal oxides, iron-copper binary oxide (Fe/Cu = 0.3 atomic ratio) was found to be the best catalyst. In the presence of pyridine, overoxidation of benzaldehyde to benzoic acid was partially prevented. As a result, highly selective formation of benzaldehyde (86% selectivity) was observed after 2 h of reaction (7% conversion of toluene) at 463 K and 1.0 MPa of oxygen atmosphere in the presence of pyridine. These catalytic performances were similar or better than those in the gas phase oxidation of toluene at reaction temperatures higher than 473 K and under 0.5-2.5 MPa. It was suggested from competitive adsorption measurements that pyridine could reduce the adsorption of benzaldehyde. At a long reaction time of 4 It, the conversion increased to 25% and benzoic acid became the predominant reaction product (72% selectivity) in the absence of pyridine. The yield of benzoic acid was higher than that in the Snia-Viscosa process, which requires corrosive halogen ions and acidic solvents in the homogeneous reaction media. The catalyst was easily recycled by simple filtration and reusable after washing and drying.
语种英语
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WOS记录号WOS:000234097100021
引用统计
被引频次:67[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93139
专题中国科学院大连化学物理研究所
通讯作者Xu J(徐杰); Xu J(徐杰)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Grad Sch, State Key Lab Catalysis, Dalian 116023, Peoples R China
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GB/T 7714
Wang, F,Xu, J,Li, XQ,et al. Liquid phase oxidation of toluene to benzaldehyde with molecular oxygen over copper-based heterogeneous catalysts[J]. ADVANCED SYNTHESIS & CATALYSIS,2005,347(15):1987-1992.
APA Wang, F.,Xu, J.,Li, XQ.,Gao, J.,Zhou, LP.,...&徐杰.(2005).Liquid phase oxidation of toluene to benzaldehyde with molecular oxygen over copper-based heterogeneous catalysts.ADVANCED SYNTHESIS & CATALYSIS,347(15),1987-1992.
MLA Wang, F,et al."Liquid phase oxidation of toluene to benzaldehyde with molecular oxygen over copper-based heterogeneous catalysts".ADVANCED SYNTHESIS & CATALYSIS 347.15(2005):1987-1992.
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