Chinese Journal of Catalysis

Chinese Journal of Catalysis ›› 2011, Vol. 32 ›› Issue (3): 463-467.DOI: 10.3724/SP.J.1088.2011.00928

• Research papers • Previous Articles     Next Articles

Baeyer-Villiger Oxidation of Cyclohexanone Catalyzed by SBA-15 Supported Silicotungstic Acid

YANG Zhiwang, MA Zhenhong, NIU Lengyuan, MA Guofu, 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:2010-10-21 Revised:2010-11-15 Online:2011-03-04 Published:2014-08-01

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Abstract: Silicotungstic acid (H4O40SiW12) was supported on SBA-15 with the content of 20% by impregnation. The structure and properties of the catalyst were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, N2 adsorption-desorption, and transmission electron microscopy. H4O40SiW12 was highly dispersed on SBA-15 without structural change. The material was applied as an efficient catalyst for the Baeyer-Villiger oxidation of cyclohexanone under different conditions such as the catalyst amount, reaction temperature, and reaction time. When 10 mg of catalyst was used, the cyclohexanone conversion and selectivity for lactone were up to 86% and 99%, respectively, at 70 oC for 8 h. The catalyst had moderate reusability in the oxidation system.

Key words: cyclohexanone, Baeyer-Villiger oxidation, lactone, silicotungstic acid, SBA-15 zeolite