Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (9): 1038-1047.DOI: 10.11944/j.issn.1000-0518.2020.09.200055

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Catalytic Synthesis of Bisphenol F over Short-Channeled Mesoporous Molecular Sieve Zr-Ce-SBA-15 Supported Acidic Ionic Liquids

LIU Ninga*, WANG Danfengb, WU Suyuna, LIU Shuilina, FU Linb, LIU Yuejinb*   

  1. aDepartment of Materials and Chemical Engineering,New Building Materials Academy, Hunan Institute of Technology,Hengyang,Hunan 421002,China;
    bSchool of Chemical Engineering,National & Local United Engineering Research Centre for Chemical Process Simulation and Intensification,Xiangtan University,Xiangtan,Hunan 411105,China
  • Received:2020-02-28 Online:2020-09-01 Published:2020-09-09
  • Contact: LIU Ning, lecturer; Tel:0734-3452196;; Research interests:functional materials and biomass conversion;LIU Yuejin, professor; Tel:0731-85262016;; Research interests:functional materials and biomass conversion
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.21878255.), the Hunan Provincial Natural Science Foundation of China(No.2020JJ5117, No.2019JJ50107, No.2016JJ4028), the Foundation of Hunan Educational Committee(No.18B465), the Talent Scientific Research Fund of Hunan Institute of Technology(No.HQ 17014,No.HQ 17011), the Foundation of Key Laboratory of Functional Metal-Organic Compounds of Hunan Province(No.MO20K02), and the Characteristic Application Discipline of Material Science and Engineering in Hunan(No.Xiang-Jiao-Tong[2018]369)

Abstract: Two supported acidic ionic liquids (ILs) consisting of SBA-15-ILs (SILs) and Zr-Ce-SBA-15-ILs(ZCSILs) were prepared by combining acidic ionic liquids with the silica-based support. The physio-chemical properties of the obtained catalysts were characterized by Fourier transform infrared (FT-IR) spectroscopy, thermalgravimetry-differential thermal gravimetry (TG-DTG), X-ray diffraction (XRD), Brunauer Emmett Teller (BET), transimition electron microscopy (TEM), scanning electron microscopy (SEM) and organic elemental analysis (OEA) measurements. The catalytic activity of the prepared catalysts was evaluated in the hydroxyalkylation of phenol and aqueous formaldehyde to bisphenol F. The effects of operating variables, such as type of catalysts, molar ratio of phenol to formaldehyde, reaction temperature, reaction time and addition of catalysts on the yield of BPF and selectivity were investigated. Under the optimum conditions (catalyst/formaldehyde mass ratio 0.36, phenol/formaldehyde molar ratio 30∶1, reaction temperature 80 ℃ and reaction time 60 min), a high bisphenol F yield of 95.6% with 44.8% selectivity to 4,4′-BPF can be achieved over the short-channeled ZCSILs catalyst with large specific surface area and high loading amount of ionic liquids and its catalytic activity is still good after being reused for 5 times.

Key words: short channeled, acid ionic liquids, Zr-Ce-SBA-15, bisphenol F, selectivity