超临界CO2萃取精馏制取高纯度EPA乙酯和DHA乙酯

被引：5

作者：

邱榕

范维澄

陈钧

机构：

[1] 中国科学技术大学火灾科学国家重点实验室!安徽合肥

[2] 江苏理工大学生物与环境工程学院!江苏镇江

来源：

化工学报 | 2001年 / 05期

关键词：

超临界CO2; 萃取; 精馏; EPA乙酯; DHA乙酯;

D O I：

暂无

中图分类号：

TQ028 [分离过程];

学科分类号：

摘要：

Fish oil ethyl esters complexed with aqueous silver nitrate solution were extracted and rectified by supercritical CO 2 to obtain DHA ester and EPA ester with high purity. The effects of some independent variables,such as extraction pressure, temperature gradient of rectifying column and programmed pressure,on rectification were investigated.The results showed that programmed pressure is suitable for purification of EPA and DHA esters. Increase of column temperature gradient from bottom to top is one of the key elements in rectification. Furthermore, higher temperature gradient leads to better separation effect.

引用

页码：456 / 459

页数：4