无有机模板快速合成ECR-1沸石  

Fast Crystallization of ECR-1 Zeolite for Organotemplate-free

作　　者：任利敏[1] 朱龙凤[1] 丁红[1] 杨承广[1] 孟祥举[2] 肖丰收[2] 

机构地区：[1]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130012 [2]浙江大学化学系,催化研究所和浙江省应用化学省重点实验室,杭州310028

出　　处：《高等学校化学学报》2011年第3期662-666,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20973097)资助

摘　　要：在无有机模板剂的条件下快速合成了硅铝沸石分子筛ECR-1,合成温度为120℃,反应时间为4 d,与传统的无有机模板合成反应时间(14 d)相比,其生长周期大大缩短,这是由它们的晶体生长机理不同所致.通过红外光谱、氮气吸附、扫描电镜、ICP及核磁共振谱等对产品的物理化学性能进行表征,以异丙苯裂化作为探针反应考察了样品的催化裂化性能.Aluminosilicate ECR-1 zeolite with 12-membered channels was synthesized at 120 ℃ for 4 d in the absence of organic templates.Compared with ECR-1 synthesized at 100 ℃ for 14 d,the crystallization of ECR-1 at 120 ℃ is very fast（4 d）,which are reasonably related to their difference in synthesis mechanism（120 ℃： a spontaneous nucleation process;100 ℃： a crystal transformation process）.Furthermore,a series of techniques such as IR spectroscopy,N2 isotherm,SEM,ICP,29Si NMR spectroscopy,and catalytic cracking of cymene were used to characterize ECR-1 zeolite.The results show that crystallization of ECR-1 is greatly impacted by the synthesis temperature under organic template-free condition.For its catalytic property,the one dimension channel was the reason for the fast deactivation.

关 键 词：快速晶化 无有机模板合成 ECR-1沸石 异丙苯催化裂化 

分 类 号：O614[理学—无机化学]