摘要
介绍了用路易斯酸作催化剂,乙酸和乙醇进行酯化反应制乙酸乙酯的方法,该方法可获得高产率。探讨了该反应可能的催化机理和反应温度、不同催化剂、反应时间等对产品收率的影响,获得最佳反应条件为:催化剂用AlCl_3,n(C_2H_5OH):n(CH_3COOH):n(AlCl_3)=2:1:0.03,反应温度90 ℃,反应时间45 min,由此产品收率可达94.3％。
The preparation method of acetic ester by esterification of acetic acid and ethanol using Lewis acid as catalyst was introduced and a possible reaction mechanism was discussed. The effects of reaction temperature, different Lewis acid catalysts, and reaction time on the yield were investigated. Optimum reaction condition was gained as follows: catalyst was aluminium chloride, ethanol:acetic acid:aluminium chloride was 2:1:0.03(mol. ) , reaction temperature was 90℃ , reaction time was 45 min. The yield of acetic ether was up to 94.3 % .
出处
《精细石油化工进展》
CAS
2001年第4期13-15,共3页
Advances in Fine Petrochemicals
