采用纳米化学制备技术合成了新型的纳米固体超强酸催化剂SO2-4/TiO2-SiO2,并用XRD、XPS和比表面积测定对其进行了表征.研究了影响SO2-4/TiO2-SiO2催化活性的因素及再生的条件,发现其对醋酸和脂肪醇的酯化反应具有良好的催化作用.实验结果表明,该催化剂具有耐水性强、可重复使用、再生容易、不腐蚀设备、不污染环境等优点,是很有应用前景的绿色工业催化剂. A new type of nano-solid superacid SO2-4 / TiO2-SiO2 was synthesized by nano-chemical preparation technique and characterized by XRD, XPS and BET surface area. The factors influencing the catalytic activity of SO2-4 / TiO2-SiO2 And regeneration conditions, found that it has a good catalytic effect on the esterification of acetic acid and fatty alcohol.The experimental results show that the catalyst has the advantages of strong water resistance, reusable, easy regeneration, no corrosion of equipment, no environmental pollution, etc., Is a promising green industrial catalyst.