硅钨酸催化合成戊酸戊酯的研究  

Synthesis of Amyl Pentanoate Catalyzed by Silicotungstic Acid

作　　者：李继忠[1] 王彦杰[1] 

机构地区：[1]延安大学化学与化工学院,延安716000

出　　处：《精细石油化工进展》2009年第4期30-31,共2页Advances in Fine Petrochemicals

摘　　要：采用硅钨酸作催化剂,以戊酸和正戊醇为原料合成了戊酸戊酯。实验考察了影响酯收率的主要因素,确定了酯化反应的优化条件:在戊酸用量固定为0.1 mol时,酸醇摩尔比为1:1.4,催化剂用量为1.2 g,带水剂甲苯用量10 mL,反应时间60 min。在此条件下,戊酸戊酯产率可达97.09%。Arnyl pentanoate was synthesized with pentanoic acid and n -pentanol as raw materials and silicotungstic acid as catalyst. The main factors influencing the reaction were investigated by experiments and the optimum conditions of esterification reaction were obtained as follows： molar ratio of pentanoic acid to pentanol 1 ： 1.4 （ amount of pentanoic acid 0. 1 tool）, amount of silicotungstic acid 1.2 g, water - carrying reagent toluene 10 mL, reaction time 60 min. The yield of amyl pentanoate could be up to 97.09% under above the conditions .

关 键 词：硅钨酸 戊酸戊酯 催化合成 

分 类 号：TQ225.24[化学工程—有机化工] TQ655