Hydroxyalkylation of Phenol with Formaldehyde to Bisphenol F Catalyzed by Keggin Phosphotungstic Acid Encapsulated in Metal鈥揙rganic Frameworks MIL-100(Fe or Cr) and MIL-101(Fe or Cr)

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• 作者：Meng Chen ; Jiaqi Yan ; Ying Tan ; Yongfei Li ; Zhimin Wu ; Langsheng Pan ; Yuejin Liu
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2015
• 出版时间：December 2, 2015
• 年：2015
• 卷：54
• 期：47
• 页码：11804-11813
• 全文大小：769K
• ISSN：1520-5045

文摘

Hydroxyalkylation of phenol with formaldehyde to bisphenol F was investigated over the metal鈥搊rganic 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)(尾) and PTA@MIL-101(Fe or Cr)(尾) with different 尾 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)(尾) had a higher catalytic activity than PTA@MIL-101(Fe or Cr)(尾). 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.