化工学报2013，Vol.64Issue(4)：1269-1275,7.DOI:10.3969/j.issn.0438-1157.2013.04.021
N2O5/HNO3体系中硝解DADN的反应动力学
Nitrolysis kinetics of DADN by N2O5/HNO3
摘要
Abstract
Concentrations of reactant, intermediate, product were measured by HPLC during nitrolysis of DADN (1,5-diacetyl-3, 7-dinitro-1, 3, 5, 7-tetraazacyclooctane) by N2O5/HNO3 at temperatures of 303, 313, 323, and 333 K. Based on the mechanism of the nitrolysis reaction (first-order consecutive reaction), the kinetic parameters were calculated from these data obtained. The activation energies were 2. 3996 ×104 J · mor-1 for the first step (DADN to SEX (1-acetyl-3, 5, 7-trinitro-1, 3, 5, 7-tetrazacyclooctane)) and 1. 6598×104 J · mol-1 for the second step (SEX to HMX (high melt point explosive)), and the pre-exponential factors were 2. 2000 ×104 h-1 and 6. 5178×102 h-1 , respectively. The reaction rate constant is larger for the fist step than for the second one. In order to check the intermediate in nitrolysis reaction of DADN, an experiment was carried out to separate and identify the intermediate (also by-product). The results indicate that this intermediate is SEX.关键词
N2O5/DADN/SEX/HMX/硝解/反应动力学Key words
N2O5/ DADN/ SEX/ HMX/ nitrolysis/ reaction kinetics分类
化学化工引用本文复制引用
何志勇,罗军,吕春绪,徐容,李金山..N2O5/HNO3体系中硝解DADN的反应动力学[J].化工学报,2013,64(4):1269-1275,7.基金项目
国家自然科学基金项目(10976014). （10976014）
