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研究了用超临界CO_2流体萃取精馏鱼油中多烯不饱和脂肪酸甲酯,以获得高纯度EPA、DHA的工艺。探讨了操作压力、温度、溶剂比对萃取精馏的影响,并进一步探讨了分离提纯的最佳工艺条件。
The supercritical CO 2 fluid was used to extract the polyunsaturated fatty acid methyl esters from fish oil to obtain high purity EPA and DHA. The effects of operating pressure, temperature and solvent ratio on extractive distillation were discussed, and the optimum conditions for the separation and purification were discussed.