壳层钛硅分子筛的制备与表征  

PREPARATION AND CHARACTERIZATION OF SHELL-TYPE TITANOSILICATE SIEVES

作　　者：史春风[1] 

机构地区：[1]中国石化石油化工科学研究院石油化工催化材料与反应工程国家重点实验室,北京100083

出　　处：《石油炼制与化工》2015年第6期36-40,共5页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(413025;414046)

摘　　要：采用两步水热晶化方法,以有机硅源和钛源制备了壳层钛硅分子筛RTS,利用多种分析表征和评价手段对RTS和常规钛硅分子筛TS-1的物化性质及催化氧化性能进行了分析表征和评价。结果表明:所制备的RTS物相为MFI结构,活性钛物种主要分布在颗粒的表层,为壳层钛硅分子筛;RTS在苯酚羟基化制备苯二酚的探针反应中表现出与TS-1相当的催化氧化活性和目的产物苯二酚的选择性,而且可重复使用,性能优于TS-1。With organic silicon and titanium,a new shell-type titanosilicate sieve （RTS） was synthe- sized by two step hydrothermal crystallization method. The physical properties and catalytic oxidation performance of RTS was characterized by various analytic instruments and phenol hydroxylation reac- tion. The results show that RTS has MFI topological structure,and the Ti species in RTS were mainly on the shell part of particles. The catalytic performance results indicate that RTS gives the same catalyt- ic oxidation activity and benzene diol selectivity as that of TS-1, and the reusable performance is better than that of TS-1.

关 键 词：钛硅分子筛 壳层 催化氧化 制备 表征 

分 类 号：TQ426[化学工程]