硅胶负载铂催化剂催化合成二环戊基二氯硅烷  

SYNTHESIS OF DICYCLOPENTYLDICHLOROSILANE CATALYZED BY SILICA SUPPORTED PT CATALYST

作　　者：刘宏[1] 许招会[1] 

机构地区：[1]江西省精细化工重点实验室,江西南昌330027

出　　处：《精细石油化工》2010年第6期39-41,共3页Speciality Petrochemicals

基　　金：国家科技攻关计划课题(2001BA323C);国家自然科学基金(20566004)资助项目

摘　　要：以二氯硅烷(DCS)和环戊烯为原料,在硅胶负载铂催化剂的催化作用下,经硅氢加成催化合成二环戊基二氯硅烷(DCPCS)。采用红外光谱和色质联机等手段表征了产物结构。考察了原料配比、催化剂的用量、催化剂的重复使用性能、反应温度、反应时间等因素对产物收率的影响。结果表明,合成DCPCS的最佳工艺条件为:二氯硅烷用量1.0 mol,n(DCS):n(环戊烯)=1.0,催化剂用量1.2 g,反应压力1.2 MPa,反应温度120℃,反应时间6 h,DCPCS的收率达88.6%,产物质量分数为99.1%。Dicyclopentyldichlorosilane （DCPCS） was synthesized from dichlorosilane （DCS） and cyclo- pentadiene via hydrosilylation with silica supported Pt catalyst. The structure of DCPCS was charac-terized by means of FT-IR and GC-MS. Effects of the molar ratio of raw materials, catalyst dosage, reusability, reaction temperature and reaction time on the yield of DCPCS were investigated. The optimal reaction conditions for the preparation of DCPCS were., dichlorosilane 1.0 mol, n（DCS）：n（di- chlorosilane）=l. 0 ： 2.2, catalyst 1.2 g, reaction pressure 1.2 MPa, reaction temperacture 120 ℃, and reaction time 6.0 h. Under these conditions, the yield and mass fraction of CMCS could reach 88.6% and 99.1%, respectively.

关 键 词：二环戊基二氯硅烷 二氯硅烷 硅胶负载铂催化剂 硅氢加成 

分 类 号：TQ426.94[化学工程]