The main factors that influence the extractive distillation were researched such as the theoretical plate number, feedboard, solvent ratio, reflux ratio, the temperature of solvent.

通过计算理论板数、进料位置、溶剂比、回流比、萃取剂温等主要因素的改变对萃取精馏过程的,工业应用提供理论与实践基础。