过氧化二异丙苯热爆炸危险性研究

 为了预防和减少过氧化二异丙苯（DCP）生产过程发生火灾爆炸事故，利用绝热加速量热仪，对DCP、DCP/20%碳酸钠和DCP/20%苯酚的热危险性进行了实验研究，得到其初始放热温度、最大温升速率、最大温升速率时间等热危险性参数和绝热放热曲线；对3种物质的测试结果进行了绝热校正。利用绝热相容性评价的判据初始放热温度和平均加速度的理论模型，计算DCP/20%碳酸钠和DCP/20%苯酚的相容性。结果表明，DCP、DCP/20%碳酸钠和DCP/20%苯酚的初始放热温度分别为97.47、106.40和115.59℃，最大温升速率分别为65.15、2.15和3.44℃·min^-1，平均加速度分别为0.2977、0.0077和0.0127。在实际的工业生产中，所选取的碳酸钠和苯酚催化剂与DCP的相容性都较好，但比较二者发现，选用碳酸钠作为催化剂更为安全。

Hazard of Thermal Explosive of Dicumyl Peroxide

In order to prevent and reduce the fire explosion accidents in the process of manufacturing Dicumyl Peroxide (DCP), the thermal hazard of DCP, DCP/20% sodium carbonate and DCP/20% phenol are studied by the Accelerating Rate Calorimeter(ARC) under adiabatic environment. Their thermal stability characteristics, such as the onset exothermic temperature, the maximum temperature rise rate and the time-to-maximum rate, and the exothermal curves, were obtained. The test data were corrected by thermal inertia factors. The compatibility of DCP/20% sodium carbonate and DCP/20% phenol was calculated by using the theoretical model, consisting of two criteria: the initial exothermic temperature and the average acceleration. It can be seen from the results that the initial exothermic temperature of DCP, DCP/20% sodium carbonate and DCP/20% phenol are 97.47, 106.40 and 115.59℃, respectively. And the maximum temperature rise rates are 65.15, 2.15 and 3.44℃·min^-1, respectively, and the average accelerations are 0.2977, 0.0077 and 0.0127. Sodium carbonate and phenol have a good compatibility with DCP as catalysts in industrial yields; however, compared with phenol, sodium carbonate performs much better in manufacturing DCP.