目的 为了获得细孔球形硅胶被完全脱附活化时对应的温度区间，以及硅胶脱附温度与脱附时间的关系，为硅胶脱附活化工艺参数的设定提供一定参考。方法 通过高低温湿热试验箱让细孔球形硅胶在一定温湿度下充分吸附水分，再利用电热鼓风干燥箱在特定温度下，对2层堆积状态下的细孔球形硅胶进行脱附性能实验，得到脱附性能曲线，并根据曲线进行分析。结果 获得了2层堆积状态下细孔球形硅胶完全脱附活化对应的温度区间，以及脱附温度与脱附时间的关系，进一步得出细孔球形硅胶的最佳脱附活化温度区间为120~130 ℃。结论 通过对实验获取的细孔球形硅胶脱附曲线进行脱附性能分析，为细孔球形硅胶脱附活化工艺参数提供了一定的参考价值。

The work aims to obtain the corresponding temperature range and the relationship between desorption temperature and desorption time when the fine porous spherical silica gel is completely desorbed and activated, so as to provide certain reference for setting the parameters of desorption activation process. The water was absorbed adequately by fine porous spherical silica gel at a certain temperature and humidity through the high and low temperature and humidity test box. Then, the desorption performance of the fine porous spherical silica gel under two-layer stacking state was tested by the electrothermal blast drying box at a specific temperature to obtain the desorption performance curve and analyzed according to the curve. The temperature range corresponding to the complete desorption activation of fine porous spherical silica gel under two-layer stacking state and the relationship between desorption temperature and desorption time were obtained. The optimum desorption activation temperature range of fine porous spherical silica gel further obtained was 120~130 ℃. Some reference value for the desorption activation process parameters of the fine porous spherical silica gel is provided through the desorption performance analysis on the desorption curves of fine porous spherical silica gel obtained by experiment.