期刊
CHINESE JOURNAL OF CHEMICAL ENGINEERING
卷 23, 期 5, 页码 775-779出版社
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/j.cjche.2014.12.008
关键词
Kinetics; 1,6-Hexamethylene diisocyanate; Decomposition; Dimethylhexane-1,6-dicarbamate
资金
- National Key Technology RD Program [2013BAC11B03]
- Knowledge Innovation Fund of Chinese Academy of Science [KGCX2-YW-215-2]
- National Natural Science Foundation of China [21476244]
The kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate was studied. A consecutive reaction model was established and the reaction orders for the two steps were confirmed to be 1 and 1.3 by the integral test method and the numerical differential method, respectively. The activation energies of the two steps were (56.94 +/- 5.90) kJ center dot mol(-1) and (72.07 +/- 3.47) kJ center dot mol(-1) with the frequency factors exp(12.53 +/- 1.42) min(-1) and (14.254 +/- 0.84) mol(-0.33) center dot L-0.33 center dot min(-1), respectively. Based on the kinetic model obtained, the progress of the reaction can be calculated under given conditions. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
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