摘要
在一水硫酸氢钠复合催化剂的条件下,由乙醇和乙酸为原料合成了较高收率乙酸乙酯。研究了一水硫酸氢钠复合催化剂使用量、乙醇使用量和反应的时间,带水剂的选择等因素对催化合成乙酸乙酯收率的影响。实验结果证明当乙醇:乙酸摩尔比为5.5∶1和硫酸氢钠为0.7 g,硫酸在0.35 g、带水剂8 mL时,回流分水100 min,酯收率达87.05%,为最优条件。
Ethyl acetate was synthesized from ethanol and acetic acid by using sodium bisulfate monohydrate as catalyst; effects of the catalyst dosage, ethanol dosage and reaction time, water-carrying agent type on the yield of ethyl acetate were investigated. The results show that ethyl acetate yield can reach to 92.07% when mole ratio of ethanol to acetic acid is 5.5∶1, and sodium bisulfate is 0.7g, sulfuric acid is 0.35 g, water-carrying agent is 8ml, reaction time is 100 min.
出处
《当代化工》
CAS
2014年第7期1166-1167,1171,共3页
Contemporary Chemical Industry
基金
国家青年科学青年基金(21207095)
关键词
乙酸乙酯
酯化率
复合催化剂
合成
ethyl acetate
esterification rate
composite catalyst
synthesis
