| Ca_(0.16)MnO_2·2H_2O催化氧化乙醇制乙醛 |
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| 引用本文： | 李秀敏,卢宁丽,刘速,秦少伟,穆金城.Ca_(0.16)MnO_2·2H_2O催化氧化乙醇制乙醛[J].工业催化,2015,23(12):1022-1026. |
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| 作者姓名： | 李秀敏 卢宁丽 刘速 秦少伟 穆金城 |
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| 作者单位： | 1.塔里木大学生命科学学院 南疆化工重点实验室，新疆 阿拉尔 843300;
2.新疆天河化工本部工厂，新疆 阿克苏842000 |
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| 摘 要： | 研究了低成本和环保的层状锰氧化物对乙醇氧化的催化作用,通过X射线衍射、N2吸附和扫描电镜等对催化剂进行表征,考察溶剂、反应温度、氧化剂用量、催化剂用量、溶剂用量和反应时间等对乙醇催化氧化制乙醛的影响。结果表明,制备的Ca_(0.16)MnO_2·2H_2O呈疏松多孔的层状结构,在氧化剂过氧化氢用量4 m L、催化剂用量0.01 g、溶剂乙腈用量5 m L、反应温度55℃和冷凝回流60 min条件下,乙醇转化率最高,为85.5%。
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| 关 键 词： | 精细化学工程 层状锰氧化物 催化氧化 乙醇 乙醛 |
Catalytic oxidation of ethanol to acetaldehyde byCa0.16MnO2·2H2O |
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| Li Xiumin,Lu Ningli,Liu Su,Qin Shaowei,Mu Jincheng.Catalytic oxidation of ethanol to acetaldehyde byCa0.16MnO2·2H2O[J].Industrial Catalysis,2015,23(12):1022-1026. |
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| Authors: | Li Xiumin Lu Ningli Liu Su Qin Shaowei Mu Jincheng |
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| Affiliation: | 1.Key Laboratory of Chemical Engineering in South Xinjiang, College of Life Science,Tarim University, ;
Alar 843300, Xinjiang, China; 2.Xinjiang Tianhe Chemical Co.,Ltd.,Akesu 842000, Xinjiang, China |
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| Abstract: | A low-cost and environmentally friendly layered manganese oxideCa0.16MnO2·2H2O for catalytic oxidation of ethanol to acetaldehyde was studied,and was characterized by X-ray diffraction,N2-adsorption and scanning electron microscope.The effects of solvents,reaction temperatures,oxidant H2O2 dosage,catalyst dosage,solvent amounts and reaction time on the oxidation of ethanol to acetaldehyde were investigated.The results showed that the as-preparedCa0.16MnO2·2H2O was porous with laminar structure.The highest conversion rate of ethanol was 85.5% under the optimum condition as follows:hydrogen peroxide amount 4 mL,catalyst dosage 0.01 g,solvent acetonitrile amount 5 mL,raction temperature 55 ℃ and reflux time 60 min. |
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| Keywords: | fine chemical engineering layered manganese oxide catalytic oxidation ethanol acetaldehyde |
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