SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (6): 1300-1306.DOI: 10.1016/j.cjche.2018.01.025

• Catalysis • 上一篇    下一篇

Synthesis and catalytic activity of SBA-15 supported catalysts for styrene oxidation

Vasu Chaudhary, Sweta   

  1. Department of Chemical Engineering and Technology, Indian Institute of Technology(BHU), Varanasi, Uttar Pradesh-221005, India
  • 收稿日期:2017-08-26 修回日期:2018-01-18 出版日期:2018-06-28 发布日期:2018-08-03
  • 通讯作者: Sweta,E-mail address:shweta.che@itbhu.ac.in

Synthesis and catalytic activity of SBA-15 supported catalysts for styrene oxidation

Vasu Chaudhary, Sweta   

  1. Department of Chemical Engineering and Technology, Indian Institute of Technology(BHU), Varanasi, Uttar Pradesh-221005, India
  • Received:2017-08-26 Revised:2018-01-18 Online:2018-06-28 Published:2018-08-03
  • Contact: Sweta,E-mail address:shweta.che@itbhu.ac.in

摘要: Cu (Ⅱ) and Mn (Ⅱ) metals embedded on mesoporous SBA-15 were synthesized by co-precipitation technique. The support and catalysts were characterized by SEM-EDX, TEM, BET, XRD and ICP-AES methods. The catalytic activity of these catalysts was evaluated for styrene oxidation at various reaction conditions such as styrene to TBHP mole ratio, temperature, catalyst amount by using TBHP as an oxidizing agent. Major reaction products were styrene oxide and benzaldehyde and highest styrene conversion (97.3%) was observed at styrene to TBHP mole ratio of 1:4, temperature at 80℃ and 20 mg of catalyst. Further, the recyclability of the catalysts was observed and found that they can be recycled three times without major loss in their activity and selectivity.

关键词: SBA-15, Styrene, Styrene oxide, Benzaldehyde, Oxidation, Catalytic oxidation

Abstract: Cu (Ⅱ) and Mn (Ⅱ) metals embedded on mesoporous SBA-15 were synthesized by co-precipitation technique. The support and catalysts were characterized by SEM-EDX, TEM, BET, XRD and ICP-AES methods. The catalytic activity of these catalysts was evaluated for styrene oxidation at various reaction conditions such as styrene to TBHP mole ratio, temperature, catalyst amount by using TBHP as an oxidizing agent. Major reaction products were styrene oxide and benzaldehyde and highest styrene conversion (97.3%) was observed at styrene to TBHP mole ratio of 1:4, temperature at 80℃ and 20 mg of catalyst. Further, the recyclability of the catalysts was observed and found that they can be recycled three times without major loss in their activity and selectivity.

Key words: SBA-15, Styrene, Styrene oxide, Benzaldehyde, Oxidation, Catalytic oxidation