摘要
以固体超强酸S2O82-蛐SnO2-SiO2为催化剂,己酸和正丁醇为原料,合成酒用香料己酸丁酯.考察了浸渍液浓度、锡硅摩尔比、焙烧温度、酸醇摩尔比、反应时间、催化剂用量等条件对酯化率的影响,得出了适宜的催化剂制备条件和酯化反应条件.当取己酸用量为0.1 mol,n(正丁醇):n(己酸)=3:1,反应时间为2.0 h,催化剂用量为0.50 g时,酯化率可达99.1%.
Butyl hexanoate was synthesized by the material of hexanoic acid and n-butyl alcohol,using solid superacid S2O82-/SnO2-SiO2 as catalyst.The effects of steep concentration,mole ratio of Sn to Si,calcination temperature,acid/alcohol ratio,reaction time,and catalyst amount on esterification reaction were studied and the appropriate reaction conditions were as follow： the mole ratio of n-butyl alcohol to hexanoic acid was 3：1,the amount of catalyst to hexanoic acid（0.1 mol） was 0.50 g,and reaction time was 2.0 h.Under the appropriate conditions,the esterification rate was up to 99.1%.
出处
《肇庆学院学报》
2011年第5期40-45,共6页
Journal of Zhaoqing University
基金
肇庆学院青年科学研究基金资助项目(201115)
关键词
固体超强酸
己酸
正丁醇
己酸正丁酯
酯化
solid superacid
hexanoic acid
n-butyl alcohol
Butyl hexanoate
esterification
