无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2023, Vol. 55 ›› Issue (11): 147-152.doi: 10.19964/j.issn.1006-4990.2023-0380

• 催化材料 • 上一篇    

双金属掺杂SBA-15催化合成双酚F及其同分异构体调控

谈瑛(), 李崇裔, 余小光, 廖红光, 颜鑫   

  1. 湖南化工职业技术学院化学工程学院,湖南 株洲 412000
  • 收稿日期:2023-07-19 出版日期:2023-11-10 发布日期:2023-11-16
  • 作者简介:谈瑛(1984— ),男,博士,讲师,主要研究方向为化工新材料及催化;E-mail:397557516@qq.com
  • 基金资助:
    湖南省自然科学基金项目(2020JJ7039)

Bimetal doped SBA-15 catalytic synthesis of bisphenol F and its isomers regulation

TAN Ying(), LI Chongyi, YU Xiaoguang, LIAO Hongguang, YAN Xin   

  1. School of Chemical Engineering,Hunan Chemical Vocational Technology College,Zhuzhou 412000,China
  • Received:2023-07-19 Published:2023-11-10 Online:2023-11-16

摘要:

以Al和Zr的金属盐为前驱物、正硅酸乙酯为硅源,通过直接水热法制备了不同n(Si)/n(M)(M=Al、Zr或Al-Zr)的催化剂M-SBA-15。通过X射线衍射、N2吸附-脱附、吡啶红外光谱等手段对制备样品进行了表征,并将其用于催化苯酚、甲醛的羟烷基化反应中合成双酚F。结果表明:Al和Zr原子成功掺杂到SBA-15的骨架中,并且在M-SBA-15上同时存在Brønsted酸和Lewis酸位点;当n(Si)/n(M)为20时,催化效果最好,双酚F的收率达到82.4%,此外,可以通过调控原料中的n(Al)/n(Zr),调节4,4′-,2,4′-,2,2'-双酚F含量;最后,提出了M-SBA-15催化合成双酚F的可能反应机理。

关键词: 双金属掺杂SBA-15, 催化合成, 双酚F, 同分异构体调控

Abstract:

Using metal salts of Al and Zr as precursors and ethyl orthosilicate as a silicon source,the catalyst M-SBA-15 doped with different n(Si)/n(M)(M=Al,Zr or Al-Zr) was prepared by direct hydrothermal method. The synthesized samples were characterized by X-ray diffraction,N2 adsorption-desorption and pyridine infrared spectroscopy,and were used to catalyze the hydroxylalkylation reaction of phenol and formaldehyde to synthesize bisphenol F. The results showed that Al and Zr atoms were successfully doped into the skeleton of SBA-15,and there were both Brønsted and Lewis acid sites on M-SBA-15. When n(Si)/n(M) was 20,the catalytic effect was the best,and the yield of bisphenol F reached 82.4%. In addition,the content of 4,4′-,2,4′-,2,2′-bisphenol F could be adjusted by adjusting n(Al)/n(Zr) in raw materials. Finally,the possible reaction mechanism of M-SBA-15 catalytic synthesis of bisphenol F was proposed.

Key words: bimetal doped SBA-15, catalytic synthesis, bisphenol F, isomer regulation

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