Br?nsted-Lewis酸性离子液体催化合成乙酸正丁酯  

Synthesis of n-butyl acetate by Br?nsted-Lewis acidic ionic liquid

作　　者：武宇[1] 王亚婷 高鹏翔 刘冉[1] 赵地顺[1] 任培兵[2] 张栓力 扈士海[3] WU Yu;WANG Ya-ting;GAO Peng-xiang;LIU Ran;ZHAO Di-shun;REN Pei-bing;ZHANG Shuan-li;HU Shi-hai(College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Shijiazhuang Coking and Chemical Group Co.,Ltd.,Shijiazhuang 050031,China;Shijiazhuang Xinyu Sanyang Industrial Co.,Ltd.,Shijiazhuang 051430,China)

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018 [2]石家庄焦化集团有限责任公司,河北石家庄050031 [3]石家庄新宇三阳实业有限公司,河北石家庄051430

出　　处：《应用化工》2019年第10期2320-2323,2327,共5页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(20576026);石家庄市科学技术研究与发展计划资助项目(161070251A)

摘　　要：合成了[HO3SC3-NEt3]Cl,与ZnCl2、FeCl3、AlCl3、CuCl2配位制备Bronsted-Lewis酸性离子液体[HO3SC3-NEt3]XCln+1,通过傅里叶变换红外光谱和核磁氢谱对[HO3SC3-NEt3]Cl结构进行表征。利用Bronsted-Lewis酸性离子液体催化合成乙酸正丁酯,通过对各种离子液体的腐蚀性和催化性能的综合分析。结果表明,当以[HO3SC3-NEt3]ZnCl3为催化剂,醇酸摩尔比为1∶1.2,催化剂用量为5%(以正丁醇计量),反应温度为95℃,反应时间为4h,环己烷为带水剂时,乙酸正丁酯的收率可达到96.94%。[HO3SC3-NEt 3]Cl was coordinated with ZnCl2,FeCl3,AlCl3 and CuCl2 to prepare Br nsted-Lewis acidic ionic liquid[HO3SC3-NEt3]XCln+1.The structure of[HO3SC3-NEt3]Cl was characterized by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectrometer.The synthesis of n-butyl acetate catalyzed by Br nsted-Lewis acidic ionic liquid.The results showed that when the[HO3SC3-NEt3]ZnCl3 was used as the catalyst,the molar ratio of alkyd was 1∶1.2,the amount of the catalyst is 5%(measured in n -butanol),the reaction temperature is 95 ℃,the reaction time is 4 h,the yield of cyclohexane is water,and the yield of n -butyl acetate is 96.94%.

关 键 词：Bronsted-Lewis酸性 离子液体 催化剂 乙酸正丁酯 腐蚀性 

分 类 号：TQ426.92[化学工程] TQ426.94