| Mo-Fe复合氧化物催化剂上对二甲苯气相催化氧化合成对苯二甲醛 |
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| 引用本文： | 文怀有,刘自力,陈胜洲. Mo-Fe复合氧化物催化剂上对二甲苯气相催化氧化合成对苯二甲醛[J]. 工业催化, 2008, 16(3): 41-44 |
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| 作者姓名： | 文怀有 刘自力 陈胜洲 |
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| 作者单位： | 1.广西大学化学化工学院，广西 南宁530004； 2.广州大学化学化工学院，广东 广州510006 |
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| 摘 要： | 采用溶胶-凝胶法和机械混合法制备了Mo-Fe复合氧化物催化剂，以对二甲苯气相催化氧化合成对苯二甲醛反应为探针，考察了不同催化剂制备方法和Fe负载量对其性能的影响，并利用XRD、IR和TG-DSC对催化剂进行了表征。结果表明，采用溶胶-凝胶法制备的Mo-Fe复合氧化物催化剂的催化性能较佳，当n(Mo)∶n(Fe)=3时，对二甲苯的转化率为66.8%，选择性为37.2%，对苯二甲醛（TPAL）的收率为24.8%。
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| 关 键 词： | 催化化学 溶胶-凝胶法 复合氧化物催化剂 对二甲苯 对苯二甲醛 催化氧化 |
| 文章编号： | 1008-1143(2008)03-0041-04 |
| 修稿时间： | 2007-11-03 |
Gas-phase oxidation of p-xylene to TPAL over Mo-Fe oxides catalyst |
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| WEN Huaiyou,LIU Zili,CHEN Shengzhou. Gas-phase oxidation of p-xylene to TPAL over Mo-Fe oxides catalyst[J]. Industrial Catalysis, 2008, 16(3): 41-44 |
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| Authors: | WEN Huaiyou LIU Zili CHEN Shengzhou |
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| Affiliation: | 1.School of Chemistry and chemical Engineering, Guangxi University, Nanning 530004, Guangxi,China; 2.College of Chemistry and chemical Engineering, Guangzhou University, Guangzhou 510006, Guangdong, China |
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| Abstract: | Mo-Fe oxides catalysts were prepared by sol-gel and mechanical mixing methods. Physicochemical properties of the catalysts were investigated by means of XRD, IR and TG-DSC techniques. Effects of different preparation methods and Fe loadings on behaviors of the catalysts using gas-phase oxidation of p-xylene to terephthalic aldehyde(TPAL) as the probe reaction. The results showed that the catalyst prepared by sol-gel method exhibited optimal catalytic behaviors, with p-xylene conversion of 66.8% and selectivity to TPAL of 37.2% at Mo/Fe molar ratio of 3. TPAL yield of 24.8% was attained under the optimum condition. |
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| Keywords: | sol-gel method oxides catalyst p-xylene terephthalic aldehyde catalytic oxidation catalytic chemistry |
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