微波辐射蒙脱土固定三氯化铝催化合成草酸二丁酯  

Catalytic Synthesis of Dibutyl Oxalate by AlCl3 Immobilized on Montmorillonite under Microwave Radiation

作　　者：隆金桥[1] 黎远成[1] 陈华妮[1] 卢建美[1] 

机构地区：[1]百色学院化学与生命科学系,广西百色533000

出　　处：《广州化工》2011年第10期68-69,76,共3页GuangZhou Chemical Industry

基　　金：广西教育厅科研项目(200911MS229)

摘　　要：采用微波辐射技术,制备蒙脱土固定AlCl3固体酸催化剂。在密封灌内,通过微波辐射方法,用草酸与正丁醇为原料合成草酸二丁酯。研究结果表明,蒙脱土固定AlCl3固体酸催化剂具有良好的催化活性,当草酸用量0.02 mol,醇酸摩尔比为3.5∶1,催化剂用量为0.08 g,微波输出功率700 W,辐射时间11 min时反应的酯化率可达84.2%。AlCl3 immobilized on montmorillonite solid acid catalyst was prepared by microwave radiation.In sealed jar,the dibutyl oxalate was synthesized with oxalic acid and butanol by microwave radiation.The results showed that the AlCl3 had good catalytic activity,when the amount of oxalic acid was 0.02 mol,molar ratio of alcohol and acid was 3.5：1,catalyst was 0.08 g,microwave powerwas 700 W,the radiation reaction time was 11 min,the yield was about 84.2%.

关 键 词：微波辐射 固定 催化合成 草酸二丁酯 

分 类 号：TQ421.1[化学工程]