以四丙基溴化铵 (TPABr)作模板剂、氨水作碱源 ,以四氯化钛部分取代钛酸四丁酯作钛源 ,成功地合成了钛硅分子筛 TS- 1.用 XRD、IR、UV- Vis等手段进行表征的结果显示 ,样品呈现 MFI拓扑结构特征 .同经典合成体系的 TS- 1相对比 ,在紫外谱图上 ,样品未出现锐钛矿 Ti O2 的特征吸收 ,证明混合钛源更有利于钛原子进入分子筛骨架内 ,合成的分子筛样品在丙烯环氧化反应中也表现出了优异的催化性能 . Using tetrapropylammonium bromide (TPABr) as templating agent and ammonia as alkalinity source, titanium tetrachloride partially substituted tetrabutyl titanate as titanium source, titanium silicalite TS-1 was successfully synthesized by XRD, IR , UV-Vis and other methods showed that the sample showed the topological structure of MFI.Compared with the classical synthesis system of TS-1, the sample did not show the characteristic absorption of anatase Ti O2 in UV spectrum, Titanium source is more conducive to titanium atoms into the framework of the molecular sieve, synthetic zeolite samples in propylene epoxidation also showed excellent catalytic properties.