摘要
采用外部冷却产生部分冷凝提供回流的方法来实现恒沸精馏,分水效果好,控制容易.对乳酸丁酯、乙酸丁酯及乙酸异戊酯的酯化研究表明,这种酯化分水方法比普通精馏分水方法反应转化率提高2%～3%,而废水带走有机物减少9%～12%.
The method of outside cooling and then generating partial condensation to offer reflow was used to realize azeotropic rectification that is effective in water separation and easy in control of reflow. By the application of esterification for n-butyl lactate, n-butyl acetate and iso-amyl acetate, it showed that this method improved the conversion of the acid by 2%~3% and reduced the loss of organic in waste water by 9%~12% compared with that of common water separator by rectification.
出处
《过程工程学报》
EI
CAS
CSCD
北大核心
2004年第4期300-304,共5页
The Chinese Journal of Process Engineering
关键词
酯化反应
共沸精馏
分水
esterification
azeotropic rectification
water separation
