Chinese Journal of Catalysis ›› 2012, Vol. 33 ›› Issue (5): 827-832.DOI: 10.3724/SP.J.1088.2012.11104

• Research papers • Previous Articles     Next Articles

Preparation and Application of SO42–/SnO2/SBA-15 Solid Acid Catalyst for Acetalization of Cyclic Ketones

YANG Zhiwang*, HONG Wei, WANG Jia, CHEN Lina, JIA Na, ZHAO Lei, MA Hengchang, LEI Ziqiang   

  1. Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, Gansu, China
  • Received:2011-11-07 Revised:2011-12-20 Online:2012-05-09 Published:2012-05-09

Abstract: SO42/SnO2/SBA-15 catalyst samples with different amounts of SnO2 were prepared by a wetness impregnation method and characterized by X-ray diffraction, N2 adsorption-desorption, and transmission electron microscopy. Their catalytic performance for the acetalization of 4-tert-butylcyclohexanone with glycol was investigated. The results showed that SBA-15 supported SO42/SnO2 improved the catalytic activity markedly, which was caused by the increasing surface area of the sulfated tin oxide. The catalytic performance of SO42/20%SnO2/SBA-15 for acetalization of several cyclic ketones with diols was also explored. Under the optimum conditions, a series of cyclic ketones such as cyclohexanone, 4-methylcyclohexanone, and 4-tert-butylcyclohexanone were well transformed into the corresponding products. The catalyst can be reused for several times without any significant loss in catalytic activity.

Key words: sulfated tin oxide, SBA-15 zeolite, solid acid, cyclic ketone, glycol, acetalization