以硅溶胶和氧氯化锆为硅源和锆源 ,采用水热合成的方法制得具有 ZSM- 5结构的 Zr- Si分子筛 ;用 0 .5 mol/L的硫酸处理该分子筛 ,并在 5 5 0℃焙烧 ,制得具有 ZSM- 5结构的 SO42 -/Zr O2 - Si O2 分子筛型的固体超强酸 .采用 XRD、 SEM、 TG、 IR、 NH3 - TPD和指示剂法对其结构和酸性进行表征 .结果表明 ,该 SO42 -/Zr O2 - Si O2 具有 ZSM- 5结构和超强酸性 ,其酸强度大于 - 1 3.75 ,且具有良好的热稳定性 The silica sol and zirconium oxychloride as the silicon source and zirconium source, hydrothermal synthesis method to obtain a ZSM-5 structure of Zr-Si molecular sieve; with 0.5 mol / L sulfuric acid treatment of the molecular sieve and 5 The solid superacid SO42 - / Zr O2 - Si O2 molecular sieve with ZSM-5 structure was obtained by calcination at 50 C. The structure and acidity of the solid superacid were investigated by XRD, SEM, TG, IR, NH3 - TPD and indicator methods The results show that the SO42 - / Zr O2 - Si O2 has the structure of ZSM-5 and superacidity, the acid strength is greater than -1 3.75, and has good thermal stability