固体超强酸S_2O_8^(2-)/MCM-41催化合成乙酸异戊酯  

Synthesis of Isoamylacetate Catalyzed by Solid Superacid S_2O_8^(2-)/MCM-41

作　　者：孙蕊[1] 陈静[1] 郭微[1] 韩梅[1] 王锦堂[1] 

机构地区：[1]南京工业大学理学院应用化学系,南京210009

出　　处：《精细石油化工进展》2005年第8期40-42,共3页Advances in Fine Petrochemicals

基　　金：中国石油化工股份有限公司资助项目(J102012)。

摘　　要：以固体超强酸S_2O_8^(2-)/MCM-41为催化剂,冰醋酸和异戊醇为原料合成了乙酸异戊酯。考察了反应条件对酯化率的影响,结果表明,在醇酸摩尔比1.5：1,催化剂用量0.4 g(冰醋酸用量为0.1 mol),带水剂甲苯15 mL,反应温度110～130℃,反应时间2 h的最佳条件下,酯化率可达99%以上。该方法的优点是酯化率高,催化剂可重复使用,且基本不腐蚀设备。Isoamylacetate was synthesized from glacial acetic acid and isoamyl alcohol with solid superacid S2O8^2-/ MCM - 41 as catalyst. The effects of reaction conditions on the esterification ratio were discussed. The results showed that the optimum conditions were as follows ： based on 0.1 mol glacial acetic acid, molar ratio of isoamyl alcohol to acetic acid 1.5 ： 1, catalyst 0.4 g, the water - entrainer toluene 15 mL, reaction at 110 ～ 130 ℃ for 2 h, the ratio of esterification was over 99 %. In this way the esterification little corrosion to equipments. ratio was high, and catalyst could be used repeatedly with

关 键 词：固体超强酸 MCM-41中孔分子筛 乙酸异戊酯 酯化 催化 MCM-41 催化合成 催化剂用量 醇酸摩尔比 可重复使用 

分 类 号：TQ655[化学工程—精细化工]