稀土杂多配离子柱撑水滑石催化合成环己烯  

Catalytic Synthesis of Cyclohexene via Layered Double Hydroxides Pillared with Rare Earth Heteropoly Complex Ion

作　　者：金烈[1] 蒋维[1] 

机构地区：[1]广东石油化工学院化学与生命科学学院,广东茂名525000

出　　处：《化学世界》2012年第7期416-420,共5页Chemical World

摘　　要：以十四酸根阴离子柱撑ZnAl水滑石为预撑前体,用离子交换法将稀土杂多配离子[Ce(PMoV)2]19-(记为Ce(PMoV)2)插层组装到了水滑石层板间,制备了稀土杂多配离子柱成水滑石催化材料ZnAl-Ce(PMoV)2。对其催化环己醇脱水合成环己烯的反应进行了研究,考察了催化剂用量、反应时间、反应温度和催化剂重复使用等因素对环己烯产率的影响,最佳反应条件为:催化剂用量为环己醇质量的4.0%,反应时间为40min,反应油浴温度为160～170℃,环己烯产率可达86.81%,纯度可达96.7%。反应条件温和,操作简便,催化剂可重复使用,对设备无腐蚀,对环境无污染。Rare earth heteropoly complex ion [Ce(PMoV)2]19-(Ce(PMoV)2) was intercalated into the interlayer space of ZnAl type layered double hydroxide precursor by ion exchange reaction,and a new type of pillared layered microporous compound ZnAl-Ce(PMoV)2 was obtained.It was found that the material had good catalytic properties for the dehydration of cyclohexanol to cyclohexene.The optimum conditions for the reaction were as follows: the mass ratio of catalyst to cyclohexanol,4%;the reaction time,40 min;and the reaction temperature,160~170℃.The conversion reached 86.81%,and the product purity was 96.7%.The catalyst can be reused,and the reaction does not cause pollution.

关 键 词：杂多配离子柱撑水滑石 催化 合成 环己烯 

分 类 号：O611.4[理学—无机化学]