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›› 2004, Vol. 4 ›› Issue (4): 300-304.

• 反应与分离 • 上一篇    下一篇

具有部分冷凝的共沸精馏酯化分水实验

韦藤幼,童张法   

  1. 广西大学化学化工学院
  • 出版日期:2004-08-20 发布日期:2004-08-20

Water Separation of Esterification by Azeotropic Rectification with Partial Condensation

WEI Teng-you,TONG Zhang-fa   

  1. School of Chemistry and Chemical Engineering,Guangxi University,Nanning
  • Online:2004-08-20 Published:2004-08-20

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%.

关键词: 酯化反应, 恒沸精馏, 分水

Abstract: 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.

Key words: esterification, azeotropic rectification, water separation

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