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建立了一套φ40 mm精馏塔.用水作萃取剂进行了萃取精馏分离醋酸甲酯和甲醇的共沸物的实验研究,探讨了溶剂比、回流比、原料液温度和萃取剂温度等主要影响因素的改变对萃取精馏过程的影响.本文建议采用的操作条件:溶剂比为2~3;回流比为0.75~1.0;进料温度为泡点温度;萃取剂温度为常温.
Set up a φ40 mm distillation tower. The experimental study on the separation of methyl acetate and methanol azeotrope by extractive distillation with water as extractant was carried out. The effects of solvent ratio, reflux ratio, feed solution temperature and extractant temperature on the extraction process influences. The proposed operating conditions: solvent ratio of 2 to 3; reflux ratio of 0.75 to 1.0; feed temperature is the bubble point temperature; extractant temperature is room temperature.