Alkylation of phenol with tert-butyl alcohol over zirconium incorporated mesoporous molecular sieves with enhanced acidity

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• 作者：Qian Zhao ; ^{qianzhao@ujs.edu.cn} ; Qian Wang ; Duolin Wu ; Xiaoqi Fu ; Tingshun Jiang ; Hengbo Yin
• 关键词：Zirconium incorporated mesoporous molecular sieve ; Solid acid catalyst ; Impregnation method ; Alkylation ; Catalytic activity
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2012
• 期刊代码：P29_1226086x
• 类别：ce
• 出版时间：25 July, 2012
• 卷：18
• 期：4
• 页码：1326-1331
• 文件大小：1249 K

摘要

Several SO₄^{2鈭?/sup>/Zr-MCM-41 and SO₄2鈭?/sup>/Zr-MCM-48 solid acid catalysts were prepared by wet impregnation method and were characterized by FT-IR, XRD, NH₃-TPD and N₂ physical adsorption, respectively. The catalytic activities of these catalysts were evaluated in alkylation reaction of phenol and tert-butyl alcohol. Experimental results reveal that the four solid acid catalysts still maintained a typical mesoporous framework. Under comparable condition, the SO₄2鈭?/sup>/Zr-MCM-48-25 catalyst exhibits much high catalytic activity and gives the highest phenol conversion as compared with the other catalysts. A maximum phenol conversion of 91.6%with 81.8%selectivity to 4-tert-butylphenol (4-TBP) was achieved at the reaction temperature of 140 掳C.}