Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (05): 544-550 .DOI: 10.6023/A1108261     Next Articles

Full Papers


李小磊, 蒋平平, 卢云, 张伟杰, 董玉明   

  1. 江南大学化学与材料工程学院 无锡 214122
  • 投稿日期:2011-08-26 修回日期:2011-11-10 发布日期:2011-11-25
  • 通讯作者: 蒋平平
  • 基金资助:

    国家自然科学基金(Nos. 20771046, 20903048)和江苏省产学研联合创新基金(No. BY2010118)资助项目.

Synthesis of Hydrotalcite-like Compounds Intercalated by 12- Phosphorus Tungsten Heteropoly Acid and Catalytic Performance on the Epoxidation of Fatty Acid Methyl Esters

Li Xiaolei, Jiang Pingping, Lu Yun, Zhang Weijie, Dong Yuming   

  1. School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu
  • Received:2011-08-26 Revised:2011-11-10 Published:2011-11-25
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 20771046 and 20903048) and the Academy and Research Institutes (BY2010118) in Jiangsu Province of China.

A kind of effective hydrotalcite-like catalysts which can be used in the epoxidation of fatty acid methyl esters were exploited in this work. The hydrotalcite-like compounds were synthesized by using the coprecipitation method, and then a novel pillared-hydrotalcite was obtained through ion-exchange method. Then, the catalyst activity was tested by epoxidation of fatty acid methyl esters without carboxylic acid, and the results indicate that pillared-hydrotalcite shows better catalytic performance. The effects of reaction time, temperature and catalyst reusability on the epoxidation of fatty acid methyl esters were discussed in detail. The conversion and selectivity of epoxy products reach 56.1% and 59.4% respectively at 60 ℃ for 16 h. After recycling 4 times, the recycle utility rate was still over 90%. Finally, the mechanism of interaction between the catalyst and oxidant was investigated.

Key words: pillared hydrotalcite-like compound, ion-exchange, epoxidation, fatty acid methyl esters