过氧化甲乙酮的热稳定性研究

Study on the Thermal Stability of Methyl Ethyl Ketone Peroxide

采用绝热加速量热仪(ARC)研究了含有不同浓度的硫酸的过氧化甲乙酮(MEKPO)分解过程,得到了它们的绝热分解温度和压力随时间变化曲线。并通过热分解动力学原理,求得了MEKPO以及含1%H2SO4、3%H2SO4溶液的MEKPO分解反应的表观活化能和指前因子。

The kinetics of the thermal decomposition reaction of methyl ethyl ketone peroxide (MEKPO) with sulfuric acid of different concentration had been studied by an Accelerating Rate Calorimeter (ARC). The curves of the rate of temperature rise and pressure versus temperature of these reactions were attained. Following thermal decomposition kinetics, the apparent activation energy (E_a) and the preexpontial factor (A) of the decomposition reaction of MEKPO and its mixture with sulfuric acid were obtained by analyzing the ARC data. From the curves of the rate of temperature rise and pressure versus temperature,along with the kinetic parameters,the effects of 1% and 3% sulfuric acid on the decomposition reaction of MEKPO were analyzed.