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Bisphenol F

The Experts below are selected from a list of 2421 Experts worldwide ranked by ideXlab platform

Yong-fei Li – 1st expert on this subject based on the ideXlab platform

  • Highly selective synthesis For 4,4′-Bisphenol F From phenol and Formaldehyde catalyzed with [C4mim][HSO4] ionic liquid ☆
    Chinese Journal of Chemical Engineering, 2016
    Co-Authors: Danfeng Wang, Zhicheng He, Zhimin Wu, Yong-fei Li

    Abstract:

    Abstract The eFFects oF N -methylimidazole cation [C n mim] with diFFerent alkyl chain lengths, the types oF cations and anions oF ionic liquids and the reaction parameters on the catalytic activity and the selectivity For 4,4′-Bisphenol F were investigated. The hydrogen bonding between the hydroxyl oF phenol and the C2-position hydrogen oF imidazole moiety in hydrophilic imidazole-based ionic liquid has important inFluence on the selectivity For 4,4′-Bisphenol F, and under the conditions oF the molar ratio oF phenol/[C 4 mim][HSO 4 ] 1:1, reaction temperature 65 °C and the theoretical molar ratio oF phenol/Formaldehyde 2:1, the selectivity For 4,4′-Bisphenol F reached 69.1%. Compared with the high phenol/Formaldehyde ratio reported in literatures, the low molar ratio oF phenol/Formaldehyde and the low reaction temperature can greatly reduce energy consumption, and has important signiFicance For industrial application.

  • short channeled mesoporous zr al sba 15 as a highly eFFicient catalyst For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F
    Chemical Engineering Journal, 2016
    Co-Authors: Yong-fei Li, Zhimin Wu

    Abstract:

    Abstract Short-channeled Zr–Al-SBA-15 catalysts with well-ordered mesostructures were prepared by a one-pot hydrothermal synthesis method under mild acidic condition, and their catalytic activities were tested in the hydroxyalkylation oF phenol with Formaldehyde. The physicochemical characteristics oF the catalysts were characterized by XRD, SEM, TEM, pyridine FTIR, and N 2 adsorption–desorption isotherm techniques. By using this catalyst, an eFFicient and environmentally benign process For the synthesis oF Bisphenol F in a heterogeneous manner was developed. Compared with the conventional Al-SBA-15 catalysts, the short-channeled Zr–Al-SBA-15 exhibited higher catalytic activity and reusability in hydroxyalkylation oF phenol because its short channels can eFFectively reduce the molecular diFFusion resistance and avoid pore block. Under the optimum hydroxyalkylation conditions (phenol/Formaldehyde molar ratio 30:1, catalyst concentration 0.004 g/cm 3 , reaction temperature 90 °C and reaction time 60 min), a high Bisphenol F yield oF 96.1% could be achieved over the short-channeled Zr–Al-SBA-15 catalyst. A kinetic model For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F has been developed.

  • hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F catalyzed by keggin phosphotungstic acid encapsulated in metal organic Frameworks mil 100 Fe or cr and mil 101 Fe or cr
    Industrial & Engineering Chemistry Research, 2015
    Co-Authors: Meng Chen, Yong-fei Li, Zhimin Wu

    Abstract:

    Hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F was investigated over the metal–organic Frameworks oF MIL-100(Fe or Cr) and MIL-101(Fe or Cr) encapsulated with Keggin phosphotungstic acid (PTA). PTA@MIL-100(Fe or Cr)(β) and PTA@MIL-101(Fe or Cr)(β) with diFFerent β values (the molar ratio oF W/M, where M = Fe or Cr) were prepared and characterized by XRD, BET, FT-IR, TG, SEM, TEM, and ICP. The research results showed that PTA@MIL-100(Fe or Cr)(β) had a higher catalytic activity than PTA@MIL-101(Fe or Cr)(β). PTA@MIL-100(Fe)(0.4) was the most eFFective among the studied catalysts and had excellent reusability. A 92.12% product yield and 93.01% selectivity For Bisphenol F could be obtained over the PTA@MIL-100(Fe)(0.40) catalyst. The eFFects oF the reaction time, reaction temperature, catalyst concentration, and phenol/Formaldehyde molar ratio on the reaction perFormance were also investigated. A plausible mechanism For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F was proposed.

Zhimin Wu – 2nd expert on this subject based on the ideXlab platform

  • Highly selective synthesis For 4,4′-Bisphenol F From phenol and Formaldehyde catalyzed with [C4mim][HSO4] ionic liquid ☆
    Chinese Journal of Chemical Engineering, 2016
    Co-Authors: Danfeng Wang, Zhicheng He, Zhimin Wu, Yong-fei Li

    Abstract:

    Abstract The eFFects oF N -methylimidazole cation [C n mim] with diFFerent alkyl chain lengths, the types oF cations and anions oF ionic liquids and the reaction parameters on the catalytic activity and the selectivity For 4,4′-Bisphenol F were investigated. The hydrogen bonding between the hydroxyl oF phenol and the C2-position hydrogen oF imidazole moiety in hydrophilic imidazole-based ionic liquid has important inFluence on the selectivity For 4,4′-Bisphenol F, and under the conditions oF the molar ratio oF phenol/[C 4 mim][HSO 4 ] 1:1, reaction temperature 65 °C and the theoretical molar ratio oF phenol/Formaldehyde 2:1, the selectivity For 4,4′-Bisphenol F reached 69.1%. Compared with the high phenol/Formaldehyde ratio reported in literatures, the low molar ratio oF phenol/Formaldehyde and the low reaction temperature can greatly reduce energy consumption, and has important signiFicance For industrial application.

  • short channeled mesoporous zr al sba 15 as a highly eFFicient catalyst For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F
    Chemical Engineering Journal, 2016
    Co-Authors: Yong-fei Li, Zhimin Wu

    Abstract:

    Abstract Short-channeled Zr–Al-SBA-15 catalysts with well-ordered mesostructures were prepared by a one-pot hydrothermal synthesis method under mild acidic condition, and their catalytic activities were tested in the hydroxyalkylation oF phenol with Formaldehyde. The physicochemical characteristics oF the catalysts were characterized by XRD, SEM, TEM, pyridine FTIR, and N 2 adsorption–desorption isotherm techniques. By using this catalyst, an eFFicient and environmentally benign process For the synthesis oF Bisphenol F in a heterogeneous manner was developed. Compared with the conventional Al-SBA-15 catalysts, the short-channeled Zr–Al-SBA-15 exhibited higher catalytic activity and reusability in hydroxyalkylation oF phenol because its short channels can eFFectively reduce the molecular diFFusion resistance and avoid pore block. Under the optimum hydroxyalkylation conditions (phenol/Formaldehyde molar ratio 30:1, catalyst concentration 0.004 g/cm 3 , reaction temperature 90 °C and reaction time 60 min), a high Bisphenol F yield oF 96.1% could be achieved over the short-channeled Zr–Al-SBA-15 catalyst. A kinetic model For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F has been developed.

  • hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F catalyzed by keggin phosphotungstic acid encapsulated in metal organic Frameworks mil 100 Fe or cr and mil 101 Fe or cr
    Industrial & Engineering Chemistry Research, 2015
    Co-Authors: Meng Chen, Yong-fei Li, Zhimin Wu

    Abstract:

    Hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F was investigated over the metal–organic Frameworks oF MIL-100(Fe or Cr) and MIL-101(Fe or Cr) encapsulated with Keggin phosphotungstic acid (PTA). PTA@MIL-100(Fe or Cr)(β) and PTA@MIL-101(Fe or Cr)(β) with diFFerent β values (the molar ratio oF W/M, where M = Fe or Cr) were prepared and characterized by XRD, BET, FT-IR, TG, SEM, TEM, and ICP. The research results showed that PTA@MIL-100(Fe or Cr)(β) had a higher catalytic activity than PTA@MIL-101(Fe or Cr)(β). PTA@MIL-100(Fe)(0.4) was the most eFFective among the studied catalysts and had excellent reusability. A 92.12% product yield and 93.01% selectivity For Bisphenol F could be obtained over the PTA@MIL-100(Fe)(0.40) catalyst. The eFFects oF the reaction time, reaction temperature, catalyst concentration, and phenol/Formaldehyde molar ratio on the reaction perFormance were also investigated. A plausible mechanism For hydroxyalkylation oF phenol with Formaldehyde to Bisphenol F was proposed.

Seitaro Namba – 3rd expert on this subject based on the ideXlab platform

  • selective synthesis oF Bisphenol F catalyzed by microporous h beta zeolite
    Applied Catalysis A-general, 2005
    Co-Authors: Suman K. Jana, Tsuyoshi Kugita, Takeshi Okamoto, Seitaro Namba

    Abstract:

    Abstract The Bisphenol F synthesis From the liquid-phase phenol and Formaldehyde condensation reaction in the presence oF water over microporous H-beta zeolites, with diFFerent Si/Al ratios, has been investigated. The catalysts have been characterized For their phase purity and acidity. With an increase in the aluminum content in beta zeolite, the acidity is increased gradually; however, the catalytic activity is increased and passes through a maximum. Among the diFFerent Al-containing beta zeolites (having Si/Al ratios From 11.5 to 124.5 mol mol −1 ), the catalyst with Si/Al ratio oF 75.0 mol mol −1 shows the best catalytic perFormance in the Bisphenol F synthesis process. The inFluences oF catalyst amount, phenol/Formaldehyde ratio and reaction temperature on the phenol and Formaldehyde condensation over the catalyst showing the highest Bisphenol F activity have been thoroughly studied.

  • aluminum graFted mcm 41 molecular sieve an active catalyst For Bisphenol F synthesis process
    Applied Catalysis A-general, 2004
    Co-Authors: Suman K. Jana, Tsuyoshi Kugita, Seitaro Namba

    Abstract:

    Abstract Liquid-phase Bisphenol F synthesis From phenol and Formaldehyde condensation reaction in the presence oF water has been investigated over mesoporous Al:MCM-41 catalysts, with diFFerent Si/Al ratios, prepared by a post-synthesis graFting method. The catalysts have been characterized For their phase purity, surFace area, average pore diameter and acidity. Introduction oF Al into the Framework oF MCM-41 increased the acidity; however, the increase in the acidity only up to a certain level increased the acid-catalyzed phenol and Formaldehyde condensation activity. Among the diFFerent Al-graFted MCM-41 molecular sieves (having Si/Al ratios From 15 to 200 mol mol −1 ), Al:MCM-41 having a Si/Al ratio oF 70 mol mol −1 shows the best catalytic perFormance in the Bisphenol F synthesis process.

  • Bisphenol F Synthesis Over Mesoporous Aluminosilicate MCM-41 Molecular Sieves
    Catalysis Letters, 2003
    Co-Authors: Suman K. Jana, Tsuyoshi Kugita, Seitaro Namba

    Abstract:

    Liquid-phase Bisphenol F synthesis From phenol and Formaldehyde condensation reaction in the presence oF water over mesoporous aluminosilicate MCM-41 catalysts (Si/Al = 50 mol mol^-1) prepared by Four diFFerent methods: sol–gel, hydrothermal, graFting and template-cation exchange at 90 °C has been investigated. The aluminum-incorporated MCM-41 samples prepared by diFFerent methods showed high activity in the Bisphenol F synthesis process. However, the procedure oF Al introduction into the Framework oF MCM-41 determines their catalytic activity in the acid-catalyzed phenol and Formaldehyde reaction. The Al:MCM-41 prepared by graFting method exhibits the highest activity in the Bisphenol F synthesis process.