摘要
以SnCl4/SiO2 为催化剂 ,由乙酸与异丁醇合成乙酸异丁酯。通过正交实验 ,讨论了醇酸摩尔比、催化剂用量、反应温度及反应时间对酯化转化率的影响 ,得出最佳反应条件 :乙酸0 1mol,醇酸摩尔比 1 5∶1,催化剂用量 1 5g ,反应时间 4h ,反应温度 15 0℃ ,最终转化率为93 87%。SnCl4/SiO2 作为催化剂 ,活性高 ,选择性好 ,对设备无腐蚀 ,可重复使用。
Isobutyl acetate was synthesized from acetic acid and isobutanol using SnCl 4/SiO 2 as catalyst.The effects of reaction conditions such as molar ratio of alcohol to acetic acid, amount of catalyst,reaction temperature and reaction time on conversion were examined and the optimum conditions were determined as follows:0.1 mole of acetic acid,1.5∶1 of molar ratio of isobutanol to acetic acid, 1.5 g of catalyst, 4 h of reaction time and 150 ℃ of reaction temperature with the conversion of 93.87%. SnCl 4/SiO 2 as catalyst has high activity, high selectivity, no corrosion to devices, and can be used repeatedly.
出处
《精细石油化工进展》
CAS
2003年第9期22-24,共3页
Advances in Fine Petrochemicals
关键词
硅胶
四氯化锡
催化
合成
乙酸异丁酯
乙酸
异丁醇
酯化
SnCl4/SiO2, esterification, acetic acid, isobutanol, isobutyl acetate,catalysis
