高校化学工程学报2017，Vol.31Issue(5)：1162-1168,7.DOI:10.3969/j.issn.1003-9015.2017.05.020
N,N-二甲基二甘醇胺合成新工艺研究
Research on a New 2-(2-Dimethylaminoethoxy) Ethanol Synthesizing Process
摘要
Abstract
A new process for 2-(2-dimethylaminoethoxy) ethanol synthesis via reaction of ethylene oxide and dimethyl amine was developed, which also produced 2-dimethylaminoethanol as a byproduct. Effects of reaction temperature, reaction pressure, molar ratio of ethylene oxide to dimethyl amine and solvent on product distribution were studied. Under optimized conditions of n(C2H7N):n(C2H4O)=1:1~2, 80℃ and 1.2MPa, the conversion of dimethyl amine is over 95% and the conversion of ethylene oxide is over 80%. The weight ratio of 2-(2-dimethylaminoethoxy) ethanol to 2-dimethylaminoethanol is in the range of 0~4, which increases with the increase of molar ratio between ethylene oxide and dimethyl amine. Therefore, the product distribution can be controlled by changing molar ratio of reactants.关键词
环氧乙烷/二甲胺/N,N-二甲基二甘醇胺/N,N-二甲基乙醇胺/产物调控Key words
ethylene oxide/dimethyl amine/2-(2-dimethylaminoethoxy) ethanol/2-dimethylaminoethanol/control of product distribution分类
化学化工引用本文复制引用
史雅静,叶小明,张琪,高锐,钱超,陈新志..N,N-二甲基二甘醇胺合成新工艺研究[J].高校化学工程学报,2017,31(5):1162-1168,7.基金项目
国家重点研发计划项目(2016YEB0301800) （2016YEB0301800）
四川省省级科技计划项目(2016GZ0382) （2016GZ0382）
四川省预算内基本建设投资计划"有机胺功能材料工程实验室". （）
