苯并环丁烯粗品的提纯研究  

INVESTIGATION ON TECHNOLOGY FOR PURIFICATION OF RAW BENZOCYCLOBUTENE

作　　者：张英强[1] 沈学宁[1] 董宁[1] 朱国敏[1] 黄发荣[1] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237

出　　处：《精细石油化工》2004年第4期40-43,共4页Speciality Petrochemicals

基　　金：教育部科学技术研究重点项目(99129)

摘　　要：考察了对于邻甲基苄氯裂解产物苯并环丁烯混合物的3种除杂方法,并确定了用硫酸处理苯并环丁烯混合物的工艺条件。采用浓度为80％的硫酸处理苯并环丁烯混合物,处理温度为20℃,处理时间为120min,苯乙炔除去率达100％、苯乙烯除去率为901,苯并环丁烯收率约76％;同时验证了提纯后的苯并环丁烯的结构。Three different methods for purification of raw benzocyclobutene (BCB) mixture obtained from pyrolysis of o-methylbenzyl chloride were investigated. The better method was found to be the treatment of raw BCB mixtures with H_2SO_4 and the optimal purification conditions were found as follows: c(H_2SO_4) is 80%, reaction temperature is 20℃, reaction time is 120 min. The removal of phenylacetylene and styrene are 100% and 90% respectively, and the recovery of BCB is about 76%. The chemical structure of refined BCB was identified.

关 键 词：苯并环丁烯 提纯 粗品 硫酸处理 混合物 除杂方法 裂解产物 工艺条件 处理温度 处理时间 除去率 邻甲基 20℃ 苯乙炔 苯乙烯 苄氯 收率 

分 类 号：TQ326.9[化学工程—合成树脂塑料工业] TS202[轻工技术与工程—食品科学]