间歇共沸精馏分离异丙醇—水体系的研究  

STUDY ON SEPARATION OF ISOPROPANOL-WATER SYSTEM BY BATCH AZEOTROPIC DISTILLATION

作　　者：王春蓉[1] 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001

出　　处：《矿冶》2010年第4期60-61,71,共3页Mining And Metallurgy

摘　　要：以异丙醇-水体系为原料,环己烷为共沸剂,采用间歇共沸精馏方法分离异丙醇,考察了塔顶和塔釜共沸剂回流比(1∶1、1∶3、1∶5)对分离效果的影响。实验结果表明:当共沸剂塔顶回流的回流比为1∶5时,分离得到的异丙醇浓度可以达到99.5%(质量分数);异丙醇的收率最高,最大收率可达78%。The isopropanol was separated by batch azeotropic distillation with isopropanol-water system as material,cyclohexane as entrainer.The effect of entrainer reflux ratio（1∶1,1∶3,1∶5）of the top and bottom tower on separation were investigated.The results showed that when entrainer reflux ratio of the top tower is 1∶5,the concertration of separated isopropanol is 99.5%.The maximum yield of isopropanol is 78%.

关 键 词：异丙醇 间歇共沸精馏 共沸剂 回流比 

分 类 号：TQ424.25[化学工程]