引用本文:
但悠梦, 米远祝, 田大听. S2O82-/ZrO2-Al2O3固体超强酸催化剂的研制与应用[J]. 应用化学,
2001, 18(10): 840-842.
Citation: DAN You-Meng, MI Yuan-Zhu, TIAN Da-Ting. Preparation and Application of S2O82-/ZrO2-Al2O3 Solid Superacid Catalysts[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 840-842.
Citation: DAN You-Meng, MI Yuan-Zhu, TIAN Da-Ting. Preparation and Application of S2O82-/ZrO2-Al2O3 Solid Superacid Catalysts[J]. Chinese Journal of Applied Chemistry, 2001, 18(10): 840-842.
S2O82-/ZrO2-Al2O3固体超强酸催化剂的研制与应用
English
Preparation and Application of S2O82-/ZrO2-Al2O3 Solid Superacid Catalysts
Abstract:
A S2O82-/ZrO2-Al2O3 type solid superacid catalyst was prepared from ZrOCl2·8H2O, AlCl3·6H2O and (NH4)2S2O8 by coprecipitation, maceration and calcination processes. Their crystal structures and acidities were determined by XRD and Hammett method, respectively. The activity of the catalyst was studied as function of Al2O3 content, calcination temperature and time in the esterification of acetic acid with butanol, and a conversion of 96.5% was obtained. The catalyst gave also higher yields in syntheses of ketals and acetals:cyclohexanone ethylene ketal(86.2%), acetophenone ethylene ketal(78.5%), acetylacetic ester ketal(88.5%), benzaldehyde glycol acetal(76.3%). The chemical structures of the products were confirmed by IR spectra.
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Key words:
- S2O82-/ZrO2-Al2O3
- / solid superacid catalyst
- / esterification
- / acetalization
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