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以醋酸和乙醇为原料,以固体超强酸TiO2/SO42-为催化剂,考察了催化剂酸度及用量、反应时间、醇酸摩尔比等对酯化产率的影响,实验结果表明:在冰醋酸用量为0.1mol的条件下,催化剂用量为1.08g,醇酸摩尔比为3,回流反应时间为1—1.5h,在以苯带水,酯化产率可达92.5%。
Acetic acid and ethanol as raw materials, solid superacid TiO2 / SO42- as catalyst, investigated the catalyst acidity and dosage, reaction time, the molar ratio of alkyd on esterification yield, the experimental results show that: the amount of glacial acetic acid Under the condition of 0.1mol, the amount of catalyst is 1.08g, the mole ratio of alkyd is 3, the reflux time is 1-1.5h, the yield of esterification can reach 92.5% with benzene water.