Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate

doi:10.1016/j.cjche.2014.12.008

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (5): 775-779.DOI: 10.1016/j.cjche.2014.12.008

• CATALYSIS, KINETICS AND REACTION ENGINEERING • Previous Articles Next Articles

Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate

Yan Cao, Huiquan Li, Ningbo Qin, Ganyu Zhu

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2014-01-20 Revised:2014-06-05 Online:2015-06-26 Published:2015-05-28
Contact: Huiquan Li
Supported by:
Supported by the National Key Technology R&D Program (2013BAC11B03), the Knowledge Innovation Fund of Chinese Academy of Science (KGCX2-YW-215-2) and the National Natural Science Foundation of China (21476244).

Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate

Yan Cao, Huiquan Li, Ningbo Qin, Ganyu Zhu

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

通讯作者: Huiquan Li
基金资助:
Supported by the National Key Technology R&D Program (2013BAC11B03), the Knowledge Innovation Fund of Chinese Academy of Science (KGCX2-YW-215-2) and the National Natural Science Foundation of China (21476244).

Abstract

Abstract: 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·mol^-1 and (72.07±3.47) kJ·mol^-1 with the frequency factors exp(12.53±1.42) min^-1 and (14.254±0.84) mol-0.33·L0.33·min^-1, respectively. Based on the kinetic model obtained, the progress of the reaction can be calculated under given conditions.

Key words: Kinetics, 1,6-Hexamethylene diisocyanate, Decomposition, Dimethylhexane-1,6-dicarbamate

摘要： 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·mol^-1 and (72.07±3.47) kJ·mol^-1 with the frequency factors exp(12.53±1.42) min^-1 and (14.254±0.84) mol-0.33·L0.33·min^-1, respectively. Based on the kinetic model obtained, the progress of the reaction can be calculated under given conditions.

关键词: Kinetics, 1, 6-Hexamethylene diisocyanate, Decomposition, Dimethylhexane-1, 6-dicarbamate

Yan Cao, Huiquan Li, Ningbo Qin, Ganyu Zhu. Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate[J]. Chin.J.Chem.Eng., 2015, 23(5): 775-779.

Yan Cao, Huiquan Li, Ningbo Qin, Ganyu Zhu. Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate[J]. Chinese Journal of Chemical Engineering, 2015, 23(5): 775-779.

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Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate

Kinetics of the decomposition of dimethylhexane-1,6-dicarbamate to 1,6-hexamethylene diisocyanate

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