直接合成法制备ZSM-5分子筛及其催化性能的研究  

Study on direct synthesis of ZSM-5 zeolite and its catalytic performance

作　　者：王绍伟[1] 金鑫[1] 王颖[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《河北工业科技》2011年第4期247-249,259,共4页Hebei Journal of Industrial Science and Technology

摘　　要：在不添加任何模板剂的情况下,通过控制晶化条件,仅凭Na+诱导晶体形成,采用水热合成法直接制备出ZSM-5分子筛,并对合成的样品进行X射线衍射、红外光谱照射、扫描电镜扫描,表明该分子筛具有典型的ZSM-5结构。该分子筛经转型后,通过TG检测其酸性,并用于环己烯水合制备环己醇反应,表现出良好的催化性能,反应4 h后,环己醇的收率达到9.4%,并保持较高的对环己醇的选择性(94%左右)。Without any templates,the ZSM-5 zeolite was directly synthesized by controlling the crystallization conditions,and the synthesized samples were investigated by using XRD,SEM and FTIR.The results indicated a kind of typical ZSM-5 structure.After ion exchance,TG was applied to measure the acidic properties of the ZSM-5 zeolite.The catalytic activity of the synthesized crystals was examined for the aqueous hydroxylation of cyclohexene.The synthesized zeolites shows a relatively high catalytic activity.After 4 h of reaction time,the yield of cyclohexanol is 9.4%,the selectivity of cyclohexanol is kept at 94%.

关 键 词：ZSM-5分子筛 直接合成 环己烯水合 

分 类 号：O643[理学—物理化学]