固体超强酸的制备及在苄甲苯合成中的应用

The Preparation of Super solid Acid Catalysts and It's Application for the Synthesis of Benzyltoluene

本文对ＴｉＯ２－ＳＯ２－４型固体超强酸催化剂的制备进行了研究，并应用于苄基甲苯的合成。考察了Ｈ２ＳＯ４浓度，与Ｈ２ＳＯ４接触时间、焙烧温度等条件对催化剂活性的影响。通过改变催化剂用量、反应温度对产品收率的影响，由正交实验确定了最佳工艺条件。在最佳工艺条件下，对二元及三元复合型固体超强酸催化剂的活性也进行了一些研究。实验结果表明，ＴｉＯ２－ＳＯ２－４型固体超强酸催化剂及其复合型催化剂可用于苄基甲苯的合成，具有工业摧广价值。

In this paper, the research for the preparation of TiO 2-SO 2- 4 supersolid acid catalysts had been done, which were applied for the synthesis of benzyltoluene. The effects of the H 2SO 4 concention, the immersion time, and the calcination temperature on the catalyst activity were tested. By variating the ammount of catalyst and the reaction temperature to influence the initial rate through the orthogonal experiment design, the optimum synthesis conditions were detected. The study for two and three elements super solid acid catalysts' avtivity were also tested under the optimum synthesis conditions. The results shown that the TiO 2-SO 2- 4 super solid acid catalyst and its' complex catalysts are available to the synthesis of benzyltoluene, and have the commercial applied values.