| 枸橼酸法制备纯晶相Mg_3（VO_4）_2及其环己烷氧化脱氢反应性能 |
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| 引用本文： | 晋梅,徐芝,刘志敏,路平,余国贤.枸橼酸法制备纯晶相Mg_3（VO_4）_2及其环己烷氧化脱氢反应性能[J].江汉大学学报(自然科学版),2011,39(4):23-27. |
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| 作者姓名： | 晋梅 徐芝 刘志敏 路平 余国贤 |
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| 作者单位： | 江汉大学化学与环境工程学院,湖北武汉,430056 |
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| 摘 要： | 采用枸橼酸法制备纯晶相Mg3 VO4 2,考察不同制备条件对催化剂微观形貌、物理性质以及环己烷氧化脱氢反应制取环己烯的影响.实验结果表明,当枸橼酸加入量与溶液中金属离子量物质的量比为1.2∶1,起始溶液pH值为4.8,焙烧温度为550°C及焙烧时间为6h时,制备的Mg3 VO4 2催化剂具有高度均一性、晶粒尺寸大小为1...
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| 关 键 词： | 枸橼酸法 Mg3VO42 环己烷 氧化脱氢反应 |
Oxidative Dehydrogenation of Cyclohexane with Mg_3(VO_4)_2 Prepared by Citric Acid Method |
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| JIN Mei,XU Zhi,LIU Zhi-min,LU Ping,YU Guo-xian.Oxidative Dehydrogenation of Cyclohexane with Mg_3(VO_4)_2 Prepared by Citric Acid Method[J].Journal of Jianghan University:Natural Sciences,2011,39(4):23-27. |
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| Authors: | JIN Mei XU Zhi LIU Zhi-min LU Ping YU Guo-xian |
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| Institution: | JIN Mei,XU Zhi,LIU Zhi-min,LU Ping,YU Guo-xian(School of Chemistry and Environmental Engineering,Jianghan University,Wuhan 430056,Hubei,China) |
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| Abstract: | Citric acid method was proposed to prepare Mg3 VO4 2 which was used as an active catalyst for the oxidative dehydrogenation of cyclohexane to cyclohexene.Effects of the preparation conditions were investigated in details.The experimental results showed that Mg3 VO4 2 catalyst calcined at 550℃ for 6 h with a molar ratio of citric acid∶metal ion = 1.2∶1 and initial pH = 4.8,exhibited the best catalytic performance with an excellent thermal stability.The yield of cyclohexene was 6.4% under the temperature of 450 °C,the molar ratio of cyclohexane to oxygen of 2∶1 and the flow of cyclohexane of 0.107 mol/h. |
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| Keywords: | citric acid method Mg3 VO4 2 cyclohexane oxidative dehydrogenation reaction |
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