C_9芳烃中连三甲苯与茚满的精密精馏及分离  

DISTILLATION AND SEPARATION OF HEMELLITON AND INDENE FROM C9 AROMATICS MIXTURES

作　　者：田文彦[1] 

机构地区：[1]江阴职业技术学院化学纺织工程系,江苏江阴214405

出　　处：《精细石油化工》2008年第1期63-65,共3页Speciality Petrochemicals

摘　　要：采用精密精馏从芳烃中分离出连三甲苯与茚满的混合物;再利用两者的熔点不同在-40℃下深冷使连三甲苯充分结晶并经离心分离,制得纯度达90%以上的连三甲苯;离心液再经精密精馏,可得到纯度达95%的茚满。The separation of hemelytron （1,2,3-trimethylbenzene） and indene （2,3 dihydroindene） from C9 aromatics mixture was studied. By means of precise distillation of the aromatics mixture, the mixture of hemelytron and indene was obtained. Due to the difference in melting points, the crystallization occurred through cryogenic cooling at -40 ℃, and by centrifugal separation, hemelytron with purity above 90% was obtained. Further precise distillation of the centrifugal solution could give in- dene with purity up to 95%.

关 键 词：混合C9芳烃 精密精馏 分离 连三甲苯 茚满 

分 类 号：TE622.15[石油与天然气工程—油气加工工程]