硫酸钛催化合成乳酸异戊酯  

Synthesis of Isoamyl Lactate Catelyzed by Titanium Sulfate

作　　者：张翔宇[1] 闫书涛 

机构地区：[1]许昌学院化学系,河南许昌461000 [2]禹州市颍川一中,河南禹州461670

出　　处：《许昌学院学报》2004年第2期34-36,共3页Journal of Xuchang University

摘　　要：以硫酸钛为催化剂 ,通过乳酸和异戊醇反应合成了乳酸异戊酯 .探讨了催化剂用量、醇酸物质的量比以及反应时间对酯化率的影响 .实验结果表明 :最佳条件为 :催化剂用量 0 3g/0 1mol乳酸 ,醇酸物质的量比 1 2∶1 ,带水剂 (环己烷 ) 8mL ,反应时间 1 5h ,温度 80～ 1 0 5℃ ,在此条件下 ,酯化率可达 98 38%.Isoamyl lactate is synthesized from lactic acid and isoamyl alcohol using titanium sulfate as catalyst.The influenceable factors such as amount of catalyst,molar ratio of isoamyl alcohol to lactic acid and reaction time on the yield of isoamiyl lactate are discussed.The results indicate that the optimum conditions are as follows:using 0.1mol loctic acid,mass of catalyst is 0.3g,molar ratio of isoamyl alcohol to lactic acid is 1.2∶1, dehydrating agent (cyclohexane)is 8 mL,reaction time is 90min,and the temperature is 80～105℃.The esterification yield for loctic acid is 98.38%

关 键 词：硫酸钛 乳酸异戊酯 催化酯化 

分 类 号：O623.624[理学—有机化学] .1[理学—化学] O621.251