SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 48 ›› Issue (8): 61-65.DOI: 10.1016/j.cjche.2021.08.006

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Liquid-phase epoxidation of propylene with molecular oxygen by chloride manganese meso-tetraphenylporphyrins

Xian-Tai Zhou1, Ling-Ling Wang1, Yang Li2, Hong-Bing Ji2,3   

  1. 1. Fine Chemical Industry Research Institute, School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China;
    2. Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China;
    3. School of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
  • 收稿日期:2021-06-07 修回日期:2021-08-07 出版日期:2022-08-28 发布日期:2022-09-30
  • 通讯作者: Hong-Bing Ji,E-mail:jihb@mail.sysu.edu.cn
  • 基金资助:
    This work was financially supported by the National Key Research and Development Program of China (2020YFA0210900), the National Natural Science Foundation of China (No. 21938001 and 21878344), Research and Innovation Team Construction Project of Guangdong University of Petrochemical Technology.

Liquid-phase epoxidation of propylene with molecular oxygen by chloride manganese meso-tetraphenylporphyrins

Xian-Tai Zhou1, Ling-Ling Wang1, Yang Li2, Hong-Bing Ji2,3   

  1. 1. Fine Chemical Industry Research Institute, School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China;
    2. Fine Chemical Industry Research Institute, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China;
    3. School of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
  • Received:2021-06-07 Revised:2021-08-07 Online:2022-08-28 Published:2022-09-30
  • Contact: Hong-Bing Ji,E-mail:jihb@mail.sysu.edu.cn
  • Supported by:
    This work was financially supported by the National Key Research and Development Program of China (2020YFA0210900), the National Natural Science Foundation of China (No. 21938001 and 21878344), Research and Innovation Team Construction Project of Guangdong University of Petrochemical Technology.

摘要: Propylene molecule owns two active sites, the direct epoxidation of propylene by dioxygen is still a challenge due to the limitation of selectivity. In this work, the direct liquid-phase propylene aerobic epoxidation protocol by chloride manganese meso-tetraphenylporphyrin (MnTPPCl) was developed. The conversion of propylene was 12.7%, and the selectivity towards PO (propylene oxide) reached up to 80.5%. The formation of PO was attributed to the mechanism via high-valent Mn species, which was confirmed by means of in situ UV–vis spectrum.

关键词: Propylene, Epoxidation, Dioxygen, Manganese porphyrins, Liquid phase

Abstract: Propylene molecule owns two active sites, the direct epoxidation of propylene by dioxygen is still a challenge due to the limitation of selectivity. In this work, the direct liquid-phase propylene aerobic epoxidation protocol by chloride manganese meso-tetraphenylporphyrin (MnTPPCl) was developed. The conversion of propylene was 12.7%, and the selectivity towards PO (propylene oxide) reached up to 80.5%. The formation of PO was attributed to the mechanism via high-valent Mn species, which was confirmed by means of in situ UV–vis spectrum.

Key words: Propylene, Epoxidation, Dioxygen, Manganese porphyrins, Liquid phase