SO_4^(2-)改性铝层柱粘土固体酸催化合成乙酸正丁酯  

n-Butyl acetate synthesis catalyzed by SO_4^(2-) modifiedaluminium pillared interlayer clay

作　　者：郝文正[1] 于少明[1] 陆亚玲[1] 程俊[1] 

机构地区：[1]合肥工业大学化学工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2005年第4期386-388,共3页Journal of Hefei University of Technology：Natural Science

基　　金：合肥工业大学中青年科技创新群体培养计划资助项目

摘　　要：以SO2-4改性铝层柱粘土固体酸催化剂催化合成了乙酸正丁酯,考察了催化剂主要制备条件对乙酸转化率的影响。实验得乙酸正丁酯的最佳合成条件为:酸醇摩尔比1∶1.4,催化剂用量0.5g,反应时间3h,反应温度115～122℃。在此条件下,乙酸转化率可达90.2%以上,催化剂可重复使用。The n-butyl acetate was synthesized with the SO~^(2-)__4 modified aluminium pillared interlayer clay as the catalyst.The effects of main preparation conditions of the catalyst on the conversion of acetic acid were studied.The optimum synthesis conditions of n-butyl acetate found by experiments are as follows: the molar ratio of acetic acid to n-butyl alcohol was 1.0∶1.4,the amount of the catalyst 0.5 g,the reaction time 3 h,and the reaction temperature 115～122 ℃.The conversion rate of acetic acid was over 90.2% under the optimum conditions.The catalyst was reusable.

关 键 词：固体酸 SO4^2-改性铝层柱粘土 乙酸正丁酯 酯化 

分 类 号：TQ016[化学工程]