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路易斯酸催化制乙酸乙酯的研究

Study on Preparation of Acetic Ether with Lewis Acid as Catalyst

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【作者】 张熊禄; 张盛泉; 薛君;

【Author】 Zhang Xionglu Zhang Shengquan Xue Jun (Department of Chemistry, Gannan Teacher’ s College, Ganzhou 341000)

【机构】 赣南师范学院化学系; 赣南师范学院化学系 赣州 341000; 赣州 341000; 赣州 341000;

【摘要】 介绍了用路易斯酸作催化剂,乙酸和乙醇进行酯化反应制乙酸乙酯的方法,该方法可获得高产率。探讨了该反应可能的催化机理和反应温度、不同催化剂、反应时间等对产品收率的影响,获得最佳反应条件为:催化剂用AlCl3,n(C2H5OH):n(CH3COOH):n(AlCl3)=2:1:0.03,反应温度90 ℃,反应时间45 min,由此产品收率可达94.3%。

【Abstract】 The preparation method of acetic ester by esterification of acetic acid and ethanol using Lewis acid as catalyst was introduced and a possible reaction mechanism was discussed. The effects of reaction temperature, different Lewis acid catalysts, and reaction time on the yield were investigated. Optimum reaction condition was gained as follows: catalyst was aluminium chloride, ethanol:acetic acid:aluminium chloride was 2:1:0.03(mol. ) , reaction temperature was 90℃ , reaction time was 45 min. The yield of acetic ether was up to 94.3 % .

【关键词】 路易斯酸; 乙酸乙酯; 催化;
【Key words】 Lewis acid; acetic ester; catalyzation;
  • 【文献出处】 精细石油化工进展 ,Advances in Fine Fetrochemicals , 编辑部邮箱 ,2001年04期
  • 【分类号】TQ223.24
  • 【被引频次】27
  • 【下载频次】588
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