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本文研究了用气相TiCl4同晶取代制得的钛硅分子筛（TS）作催化剂，对苯乙烯进行催化氧化。考查了催化剂的用量、苯乙烯／H2O2（mol）比和溶剂丙酮／苯乙烯（mol）比、反应温度以及反应时间等反应条件对该催化氧化反应的影响。发现TS量／苯乙烯比为0．3／10mmol、苯乙烯／H2O2比为3、丙酮／苯乙烯比在1．54～6．16之间、反应温度为60～70℃、反应时间≥5h时，对该反应较适宜。在最佳反应条件下，获得苯乙烯的转化率～25．2％、PhC2H3O（苯乙醛＋环氧苯乙烷）的选择性90．9％、H2O2的利用率为75．5％的结果。
In this paper, we studied the catalytic oxidation of styrene with the use of titanium silicalite (TS) prepared by gas-phase TiCl4 substitution. The effect of reaction conditions such as the amount of catalyst, the ratio of styrene / H2O2 (molar ratio) and solvent acetone / styrene (mol), the reaction temperature and the reaction time on the catalytic oxidation was investigated. It was found that the TS / styrene ratio was 0.3 / 10 mmol, the ratio of styrene / H2O2 was 3, the ratio of acetone / styrene was 1.54 to 6.16, the reaction temperature was 60 to 70 ° C, and the reaction time was 5 h When the reaction is more appropriate. Under the optimal reaction conditions, the conversion of styrene was 25.2%, the selectivity of PhC2H3O (phenylacetaldehyde + styrene oxide) was 90.9%, and the utilization of H2O2 was 75.5% .