真空精馏提纯桃醛的研究  

REFINING PEACH ALDEHYDE BY VACUUM DISTILLATION

作　　者：许松林[1] 应安国[1] 王淑华[1] 

机构地区：[1]天津大学精馏技术国家工程中心,天津300072

出　　处：《精细石油化工》2004年第6期43-45,共3页Speciality Petrochemicals

基　　金：天津市科委公关计划资助项目(No.0131086114)

摘　　要：通过测试桃醛粗品(纯度66.67%)在不同温度下浓度的变化,研究了桃醛的热敏性,并根据热敏性进行了桃醛粗品提纯的间歇真空精馏实验。实验结果表明:采用变回流比操作,操作压力不超过4.0kPa,釜温低于170℃,桃醛的纯度达到99%以上,收率达到72.4%。用化工过程动态模拟软件HysysPlant2.2对实验过程进行了模拟,采用恒塔顶浓度和变回流比方案的模拟结果和实验测定值符合较好。The thermosensitivity of peach aldehyde was studied by testing the concentration variation in rough product (purity 66. 67%). Through the batch distillation experiments, the optimal operation conditions were found as follows: the pressure is less than 4. 0 kPa and the tower still temperature is less than 170℃ with varian reflux ratio. The concentration and average yield of the purified product is up to 99% and 72. 4% respectively. The experimental results is consistent with that simulated by Hysys Plant 2. 2.

关 键 词：桃醛 真空精馏 回流比 温度 热敏性 γ-庚基丁内酯 

分 类 号：TQ225.24[化学工程—有机化工] TQ028.31