改性蒙脱土催化合成正丁醚的研究
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摘要
以离子交换法制备固体酸催化剂,研究了正丁醇的醚化反应。结果表明:正丁醚制备的最佳反应温度为120℃、反应时间90min、催化剂加入量8.7%(质量分数),且反应在常压条件下进行。在此工艺条件下,正丁醚的产率为58.2%,反应的选择性为79.3%。
The aim of this experiment was to research the etherification reactionof n butylalcholbypreparing thesolid acid catalystusing ion exchange method.The catalytic reaction on synthesis of n butyl ether showed that the optimum condition is as follows:reaction temperature120℃,reaction time 90 min,the amount of catalyst 8.7%,under normal pressure.In this process,the yield of n butyl ether was 58.2%.The reaction selectivity was79.3%.
The aim of this experiment was to research the etherification reactionof n butylalcholbypreparing thesolid acid catalystusing ion exchange method.The catalytic reaction on synthesis of n butyl ether showed that the optimum condition is as follows:reaction temperature120℃,reaction time 90 min,the amount of catalyst 8.7%,under normal pressure.In this process,the yield of n butyl ether was 58.2%.The reaction selectivity was79.3%.
引文
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[2]强敏,李莉,陈莹莹,等.蒙脱土固体酸的制备及表征[J].化学与生物工程,2005.
[3]张延琪.正丁醚制备实验的改进[J].滁州师专学报,2001,3(2).
[4]杨科,王锦成,郑晓昱.蒙脱土的结构、性能及其改性研究现状[J].上海工程技术大学学报,2011,25(1).
[5]黄星亮.固体酸催化理论与反应机理[EB/OL].http://wenku.baidu.com/view/cc5c150003d8ce2f006623d2.html.
[6]周莉萍.高纯度正丁醚及其杂质的气相色谱测定方法[J].安徽农学通报,2010,16(21).
[7]何玉莲,何昌洪,崔锡红,等.改性蒙脱土固体酸的制备及其催化性能[J].工业催化,2007.
[8]F.A.Zhang,L.Chen,J.Q.Ma,et al.Effects of HydrophilicMonomer Typesand Level on Polystyrene-Acrylate/montmorillonite Nanocomposite Made by Emulsion Polymerization[J].Journal of Fudan University(NaturalScience),2007,46(5).
[9]H.HASHlZUME.Interaction of Mg—Rich Montmorillonite with Nucleic Acid Bases and Sugar[J].Journal of Fudan University(Natural Science),2005,44(5).
[10]V.N.Kislenko and R.M.Verlinskaya.Adsorption of Aminoalkylated Polyacrylamide on Montmorillonite and Palygorskite[J].Colloid Journal,2001,63(1).