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Citation: ZHANG Heng, WANG Min, ZHU Wancheng, LI Yanxin, ZHAO Bin. Preparation of Kaolinite Supported SO₄^2-/ZrO₂-TiO₂ Catalyst and Its Application in Cyclohexanone Ethylene Ketal Synthesis[J]. Chinese Journal of Applied Chemistry, ;2011, 28(5): 608-610. doi: 10.3724/SP.J.1095.2011.00434 shu

Preparation of Kaolinite Supported SO₄^2-/ZrO₂-TiO₂ Catalyst and Its Application in Cyclohexanone Ethylene Ketal Synthesis

1.
School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165

Corresponding author: ZHANG Heng,
Received Date: 29 July 2010
Available Online: 26 September 2010
Fund Project: 山东省自然科学基金(Z2008B12) (Z2008B12)

Acid activated and kaolinite supported SO₄^2-/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 SO₄^2-/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%.
- kaolinite supported solid acid,
- catalyst,
- ketalation
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Preparation of Kaolinite Supported SO42-/ZrO2-TiO2 Catalyst and Its Application in Cyclohexanone Ethylene Ketal Synthesis

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通讯作者: 陈斌, bchen63@163.com

Preparation of Kaolinite Supported SO₄^2-/ZrO₂-TiO₂ Catalyst and Its Application in Cyclohexanone Ethylene Ketal Synthesis