硫酸镓改性离子交换树脂催化合成乳酸丁酯  

Synthesis of butyl lactate catalyzed by modified strong acid cation ion exchange resin by gallium sulfate

作　　者：陈丹云[1] 张霞[2] 何建英[1] 

机构地区：[1]河南大学化学化工学院,河南开封475004 [2]郑州轻工业学院继续教育学院,河南郑州450002

出　　处：《食品工业科技》2008年第12期191-192,共2页Science and Technology of Food Industry

基　　金：河南省教育厅自然科学研究计划项目(2008A150002)

摘　　要：首次采用硫酸镓与阳离子交换树脂反应制备的改性离子交换树脂催化合成乳酸丁酯,考察了催化剂用量、醇酸物质的量比、反应时间及催化剂重复使用次数等因素对收率的影响。结果表明,该催化剂具有催化活性高,易分离回收,后处理方便,重复使用性较好等优势。适宜条件下收率达91.9%。A new catalyst named modified strong acid cation ion exchange resin by gallium sulfate was prepared. Lactic acid and n-butanol reacted to form butyl lactate with it. Factors influencing the yield were discussed and the best condition was found. The yield was 91.9% under the best condition. It also had good reusability. It was efficient, economic and environmental friendly catalyst.

关 键 词：乳酸丁酯 硫酸镓改性离子交换树脂 催化 合成 

分 类 号：TS202.3[轻工技术与工程—食品科学]