TY - JOUR
T1 - Nitrolysis kinetics of DADN by N2O5/HNO3
AU - He, Zhiyong
AU - Luo, Jun
AU - Lü, Chunxu
AU - Xu, Rong
AU - Li, Jinshan
PY - 2013/4
Y1 - 2013/4
N2 - 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·mol-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.
AB - 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·mol-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.
KW - DADN
KW - HMX
KW - NO
KW - Nitrolysis
KW - Reaction kinetics
KW - SEX
UR - http://www.scopus.com/inward/record.url?scp=84876469715&partnerID=8YFLogxK
U2 - 10.3969/j.issn.0438-1157.2013.04.021
DO - 10.3969/j.issn.0438-1157.2013.04.021
M3 - 文章
AN - SCOPUS:84876469715
SN - 0438-1157
VL - 64
SP - 1269
EP - 1275
JO - Huagong Xuebao/Journal of Chemical Industry and Engineering (China)
JF - Huagong Xuebao/Journal of Chemical Industry and Engineering (China)
IS - 4
ER -