应用化学2011，Vol.28Issue(5)：608-610,3.DOI:10.3724/SP.J.1095.2011.00434
高岭土负载SO2-4/ZrO2-TiO2催化剂的制备及其在缩酮合成中的应用
Preparation of Kaolinite Supported SO2-4/ZrO2-TiO2 Catalyst Catalyst and Its Application in Cyclohexanone Ethylene Ketal Synthesis
摘要
Abstract
Acid activated and kaolinite supported SO24-/ZrO2-TiO2 was prepared as a solid acid catalyst. The structure and acid strength of the catalyst was studied by FT-IR, XRD and NH3-TPD. The activity and stability of the catalyst for the synthesis of cyclohexanon ethylene ketal were investigated. The results showed that the acid amount of kaolinite was increased with increasing acid activation, and the acid strength was significantly enhanced after supporting SO24-/ZrO2-TiO2 and calcinations at 500℃ for 3 h. When the molar ratio of cyclohexanone to ethylene is 1∶1. 2, the loading of catalyst is 1. 2 g and the volume of cyclohexane is 15 mL, the yield of cyclohexanone ethylene ketal from 0. 2 mol cyclohexanon feed could reach 96. 8％ after 70 min reaction. The catalyst was used repeatedly for 5 times with the yield still larger than 90％.关键词
高岭土负载固体酸/催化剂/缩酮反应Key words
kaolinite supported solid acid,catalyst,ketalation分类
化学化工引用本文复制引用
张恒,王敏,朱万诚,李言信,赵斌..高岭土负载SO2-4/ZrO2-TiO2催化剂的制备及其在缩酮合成中的应用[J].应用化学,2011,28(5):608-610,3.基金项目
山东省自然科学基金(Z2008B12)、曲阜师范大学博士科研启动基金资助项目 （Z2008B12）
