BuAENA合成过程中反应热的测定及动力学关联

摘要

用全自动反应量热器(RC1e)测定了丁基-叠氮乙基硝胺(BuAENA)合成过程的反应热,用Levenberg-Marquardt法获得叠氮化反应的宏观动力学参数.结果表明,在合成过程中BuAENA的反应焓变为-18.1 kJ/mol,最大放热速率为25.4J/s,反应绝热温升为11.1K时,BuNENA、NaN3的反应级数分别为0.97、0.05,反应活化能为15.31 kJ/mol,指前因子为0.27m01·m-3·s-1.%The heat of reaction of synthesis process of n-butyl azideethylnitramine (BuAENA) was measured by a Rcle calorimeter. The apparent kinetic parameters of the process were obtained by Levenberg-Marquardt s method. The results show that in the process,the enthalpy of reaction (△H) is -18. 1 Kj/mol. The maximum exothermic rate is 25. 4 W,the adiabatic temperature rise AT is 11. 1K, the reaction order is 0. 97 for BuNENA and 0. 05 for NaN3 respectively. The activation energy(Ea)of the reaction is 15. 31 Kj/mol,and the pre-exponential constant is 0. 27 mol· m-3 ·s-1.