在间歇萃取精馏装置中,分别进行了以乙二醇、乙二醇+醋酸钾、乙二醇+氢氧化钠、乙二醇+氢氧化钾4种溶液为萃取剂,间歇萃取精馏分离乙醇-水的精馏操作.研究了原料浓度、溶剂和原料比、不同的溶剂对分离效果的影响,从而确定了间歇萃取精馏分离乙醇-水的最佳萃取剂.%In the batch extractive distillation in the experimental device,different extraction distillation methods by using ethylene glycol,ethylene glycol with potassium acetate,ethylene glycol with sodium hydroxide,ethylene glycol with potassium hydroxide as extractant separation of ethanol and water were discussed.The effects of concentration of raw material,the volume ratio of solvent & raw material and different solvents on separation were investigated and the best extractant for batch extractive distillation of ethanol and water was thus determined.
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