摘要
筛选无机盐硫酸氢钠为催化剂合成乳酸乙酯,并就其合成工艺进行了包括原料乳酸脱水处理,全回流反应,带填料柱的回流分水反应,减压蒸馏反应液,残液回用和重蒸前馏份等若干方面的改进。产品总收率达88.3%。
Ethyl lactate was synthesized by the screened catalyst NaHSO4·H2O. The methods couclued to remove water in lactic acid. total reflux reaction, reflux and removing water reaction with a packed column, vacuum distillation after the reaction and the reuse of its waste liquid and front cut fraction. The total yield reached 88.3%.
出处
《河北化工》
2007年第1期15-16,共2页
Hebei Chemical Industry
基金
河南省教育厅自然科学研究项目(2004601042)
河南省教育厅自然科学计划项目(200510475015)
关键词
乳酸乙酯
合成工艺
改进
cthyl lactate
synthetic process
improvement
