固体超强酸SO_4^(2-)/TiO_2/LA^(3+)催化合成丙酸异戊酯  

Synthesis of Isoamyl Propionate by Solid Superacid SO_4^(2-)/TiO_2/La^(3+) Catalyst

作　　者：杨开莲[1] 谢承礼 

机构地区：[1]武汉工程大学分析测试中心,湖北武汉430073 [2]湖北沙隆达股份有限公司,湖北荆州434001

出　　处：《广东化工》2007年第1期44-45,共2页Guangdong Chemical Industry

摘　　要：制备固体超强酸SO42-/TiO2/La3+催化合成了丙酸异戊酯,酯化率可达95.7%,且催化剂可重复使用。适宜的反应条件为:正丙酸0.2 mol,反应时间2 h,催化剂用量0.8 g,醇酸摩尔比1.6,带水剂甲苯用量12 mL。Solid super acid SO4^2-/TiO2/La^3＋ was prepared and used for the catalytic synthesis of isoamyl propionate. The yield of isoamyl propionate reaches 95.7% under the proper conditions. It was shown that the proper conditions were as follows： the reacting time was 2 h. the molar ratio of isoamylol to propionic acid =l.6, the weight of the catalyst was 0.8 g （when propionic was 0.2mol）, the amount of the dewatering reagent toluene was 12 mL.

关 键 词：固体超强酸 催化 丙酸异戊酯 

分 类 号：TQ225.242[化学工程—有机化工]