关键词： 乙酰丙酸；蔗糖；固体酸；表征；活性
The Preparation ，Properties and Characterization of Solid Acid
Abstract:A series of S2O82-/ZrO2-SiO2, S2O82-/TiO2 and S2O82-/TiO2/La3+ rare earth super solid acid catalysts were prepared by the method of precipitation-impregnation and sol-gel. Solid super acid catalysts were characterized by means of IR and BET. The result indicate that S2O82-/TiO2 catalyst’s BET is the biggest. The catalysts were studied in hydrolysis of sucrose soluions reaction respectively. The S2O82-/TiO2 solid acid catalysts are favorable solid acid catalysts in hydrolysis of sucrose solutions reaction. Of the three catalysts tested, the S2O82-/TiO2 solid acid catalysts off the highest, The result indicate that: when the rosting temperature is 700℃, the roasting time is 3h, the yield of LA can reach 40%.
Consequently,for the hydrolysis of sucrose soluions reaction reaction system, S2O82-/TiO2 solid acid catalysts is hopefully to be used as candidate of the hydrolysis reaction catalyst. Further more, this paper offers basic dadt for a further study.
