MnSAPO-34催化合成环己酮1,2-丙二醇缩酮  

Catalytic synthesis of cyclohexanone1,2-propanediol ketal by MnSAPO-34 molecular sieve

作　　者：韶晖[1] 王彬彬[1] 钟璟[1] 

机构地区：[1]常州大学石油化工学院,江苏常州213164

出　　处：《化学研究与应用》2011年第12期1715-1719,共5页Chemical Research and Application

基　　金：省重点实验室开放课题项目(KF0806)资助

摘　　要：采用气相转移法(VPT)合成了杂原子Mn取代的MnSAPO-34(CHA结构)分子筛。采用X射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)等手段对其进行了表征。结果表明,Mn2+进入到分子筛的骨架中。将该催化剂用于环己酮和1,2-丙二醇的缩酮反应,n(环己酮)∶n(1,2-丙二醇)=1∶1.1,分水剂环己烷用量为6.0 mL,催化剂用量为反应物总质量的3 wt%,在120℃下反应2 h,环己酮1,2-丙二醇缩酮(CPK)收率可达93.3%。催化剂重复使用4次后,环己酮1,2-丙二醇缩酮的收率仍达82.9%。The Mn-substituted silicoaluminophosphate molecular sieves MnSAPO-34（with CHA framework topology）were synthesized by vapor-phase transport（VPT）method and characterized by XRD and FT-IR.The results showed that the Mn2＋ was incorporated into the framework of MnSAPO-34.Under the conditions of n（cyclohexanone）∶n（1,2-propanediol）=1∶1.1,6.0 mL of cyclohexane as water stripping agent,catalyst dosage of 3%（wt）of the total reactants,reaction temperature 120 ℃ and reaction time 2 h,the yield of cyclohexanone1,2-propanediol ketal（CPK）was 93.3%.After the catalyst was reused for four times,the yield of CPK was still kept at 82.9%.

关 键 词：气相转移法 MnSAPO-34分子筛 环己酮1 2-丙二醇缩酮 

分 类 号：O623.54[理学—有机化学]