活性炭固载对甲苯磺酸催化合成丙酸丁酯的研究  

Research on Synthesis of N-butyl Propionate Catalyzed by P-toluenesulfonic Acid Supported on Activated Carbon

作　　者：林世静[1] 孙阳昭[2] 佟拉嘎[1] 丁虹[1] 何嘉杰[1] 

机构地区：[1]北京石油化工学院化学工程系,北京102617 [2]国家环境保护总局,北京100035

出　　处：《北京石油化工学院学报》2006年第1期54-58,共5页Journal of Beijing Institute of Petrochemical Technology

摘　　要：用丙酸和正丁醇为原料,以颗粒状活性炭固载对甲苯磺酸催化合成了丙酸丁酯。研究结果表明:活性炭固载对甲苯磺酸具有较高的催化活性。通过多次实验得出最佳反应条件为:物料配比为1:1．2(以丙酸用量0．2 mol为基准),催化剂用量为1．0 g,反应回流时间为2．0 h,反应酯化率可达 99．78％,催化剂的重复利用率较好。利用折光率、红外光谱分析等对产品进行了物性和结构表征。This paper studies the synthesis of n-butyl propionate catalyzed by p-toluenesulfonic acid supported on granular activated carbon using propionate acid and n-butanol as raw materials. The results show that the p-toluenesulfonic acid supported on activated carbon exhibits a higher activity. The optimal reaction conditions resulting from lots of experiments are as follows： the ratio of raw materials is 1 ： 1.2 （based on the usage of propionate as 0.2 mol）, the usage of catalyst is 1.0 g, and the reaction time is 2.0 h. The yield of n-butyl propionate can reach 99.78%, and the catalyst can-be used repeatedly under optimal reaction conditions. The physical properties and the structure of products are characterized by refractive index and IR. Key words granular activated carborn;rsterification;p-toluenesulfonic acid;n-butyl propionate

关 键 词：颗粒状活性炭 酯化反应 对甲苯磺酸 丙酸丁酯 

分 类 号：TQ655[化学工程—精细化工]