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硅溶胶作为催化剂的添加成分,具有既可保持足够孔容,又不影响催化活性,还能大大提高机械强度的优点。为确保制备过程中的粘度指标,采用了改良型奥氏粘度計及旋轉粘度計相結合来测定不同粘度硅溶胶的方法。
Silica sol as an additive component of the catalyst has the advantages of maintaining sufficient pore volume without affecting the catalytic activity and greatly improving the mechanical strength. In order to ensure the viscosity index in the process of preparation, a modified Oe’s viscometer and rotational viscometer are combined to determine the different viscosity of silica sol.