硫酸氢钠催化合成乙酸乙酯

Synthesis of Ethyl Acetate Catalyzed by Sodium Bisulfate

以硫酸氢钠为催化剂 ,用乙酸和乙醇为原料合成了乙酸乙酯。最佳反应条件为 :催化剂用量 0 2 g/0 1mol酸 ,乙醇和乙酸物质的量比为 0 4 95∶0 33(1 5∶1) ,带水剂环己烷 15mL ,反应时间 2 5h ,乙酸的酯化率为87 5 %。

Using sodium bisulfate as the catalyst,ethyl acetate was synthesized from acetic acid and alcohol .The optimum conditions were as follows: basing on 0.33 mol acetic acid,the amount-of-substance fraction of alcohol to acetic acid was 1.5∶1,cyclohexane was 15 mL,mass of catalyst was 0.6g, reaction time was 2.5h.Under those conditions,the esterification of acetic acid is about 87.5%.