摘要
以工业酒精为原料,采用间歇共沸精馏方法制取无水乙醇,考察了共沸剂类型、共沸剂用量、共沸精馏时间等因素对分离效果的影响,实验结果表明:采用环己烷作共沸剂,共沸剂的实际加入量与理论加入量之比约为1.23∶1和共沸精馏时间为135m in左右时,制得的无水乙醇浓度(质量分率)可以达到99.88%。
The absolute ethyl alcohol was prepared by intermission azeotropy rectification with industrial alco-hol as material. The effect of types, amount and rectification time of azeotropy to segregation were investigated. The results showed that the ratio of actual addition and theoretical addition of entrainer which is eyelohexane is 1. 23： 1. The azeotropy rectification time is 135min. The eoncertration of prepared absolute ethyl alcohol is 99. 88%.
出处
《化学工程师》
CAS
2008年第9期53-54,共2页
Chemical Engineer
