关键词: 微孔-介孔硅铝分子筛, 软模板法, 苯酚叔丁基化反应

Abstract: The micro-mesoporous aluminosilicate molecular sieves were prepared by mixing aluminosilicate sol precursor with polyethylene glycol (PEG) soft template under hydrothermal condition. X-ray diffraction (XRD),  Fourier transform infrared (FT-IR) spectroscopy,  N₂ adsorption desorption,  transmission electron microscopy (TEM) and NH₃-temperature programmed desorption （NH₃-TPD） were used to characterize the physicochemical properties of the micro\|mesoporous aluminosilicate molecular sieves. The obtained micro\|mesoporous aluminosilicate molecular sieves were used as catalyst for alkylation of phenol with tert butyl alcohol.  The catalytic performance of the material was tested by the conversion of phenol. The results show that polyethylene glycol as a soft template produces mesoporous structure,  and the amount of polyethylene glycol can affect the crystallinity of aluminosilicate molecular sieves. The conversion of phenol is affected when the amount of PEG is different. When the dosage of polyethylene glycol is 8 g,  the conversion of phenol is the highest,  which can reach 95.5%.

Key words: micro-mesoporous aluminosilicate molecular sieve,  , soft template method,  , tert butylation of phenol