氯化镧催化合成乳酸丁酯  

Synthesis of Butyl Lactate Catalyzed by Lanthanum Chloride

作　　者：周慧[1] 蔡永红[1] 陈丹云[1] 

机构地区：[1]河南大学化学化工学院,河南开封475004

出　　处：《稀土》2009年第2期95-97,共3页Chinese Rare Earths

基　　金：河南省教育厅自然科学研究计划项目(2008A150002)

摘　　要：采用氯化镧为催化剂合成乳酸丁酯,考察了催化剂用量、醇酸物质的量比、反应时间、催化剂重复使用次数及带水剂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,有一定的重复使用性,不需加带水剂等优势。适宜条件下收率达91.2%。By using lanthanum chloride as the catalyst, lactic acid and n - butanol reacted to form butyl lactate. Some effects were investigated such as amount of catalyst,reaction time,molar ratio of alcohol to acid,different water carrying agents and repeated uses of catalyst. Experimental results showed that lanthanum chloride was the efficient, economic and environmental friendly catalyst. Under the best conditions the yield of butyl lactate could reach 91.2%.

关 键 词：乳酸丁酯 氯化镧 催化 合成 

分 类 号：O623.624[理学—有机化学] O614.33[理学—化学]