作　　者： ; ; ; ;

机构地区： 广州大学化学化工学院

出　　处： 《化学反应工程与工艺》 2009年第2期153-158,共6页

摘　　要： 以三乙胺为模板剂,用水热晶化法合成了FeAPO-5分子筛,并用X射线衍射(XRD)、程序升温还原(TPR)、热重分析(TG)、傅立叶红外光谱(FT-IR)和紫外-可见漫反射光谱(UV-Vis DRS)等对分子筛样品进行了表征。结果表明,铁原子通过同晶取代方式进入分子筛骨架,结晶度高,晶粒均匀。以FeAPO-5为催化剂,氧气为氧源,叔丁基过氧化氢为引发剂,在反应温度为130℃和压力1.5 MPa条件下,反应24 h,环己烷转化率为6.52%,醇酮总选择性可达96%以上,酮醇比达3.34,几乎没有环己基过氧化氢生成。 The FeAPO-5 molecular sieve was synthesized by means of hydrothermal crystallizing process using triethylamine as organic templating agent and was characterized by X-ray diffraction （XRD）, temperature-programmed reduction （TPR）, thermal analysis （TG）, Fourier transform infrared ray （FT-IR） and ultraviolet-visible diffuse reflectance （UV-Vis DRS）. The results showed that Fe atoms embed the framework of FeAPO-5 molecular sieve by isomorphous substitution and the crystallinity of FeAPO-5 molecular sieve exhibited good and grains were uniform. Using FeAPO-5 molecular sieve catalyst, Oz as oxygen source, tert-butyl hydroperoxide as initiator, conversion of cychohexane was 6.52%, total selectivity of cyclohexanone and cyclohexanol was 96%, mass ratio of cyclohexanone to cyclohexanol was 3.34 and cyclohexyl hydroperoxide was little after reaction 24 h under conditions of 130℃ and 1.5 MPa.

关 键 词： 同晶取代 表征 环己烷氧化

领　　域： [理学] [理学]