Observed Kinetics Study of Methylene Diphenyl Dicarbamate Thermo-decomposition to Diphenylmethane Diisocyanate

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (5): 1106.

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Observed Kinetics Study of Methylene Diphenyl Dicarbamate Thermo-decomposition to Diphenylmethane Diisocyanate

ZHANG Qin-Hua^1,2, LI Hui-Quan^1*, LIU Hai-Tao¹, PEI Yi-Xia^1,2

1. Key Laboratory of Green Process and Engineering, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2010-12-28 Revised:2011-02-25 Online:2011-05-10 Published:2011-04-11
Contact: LI Hui-Quan E-mail:hqli@home.ipe.ac.cn
Supported by:
国家科技支撑重大项目课题(批准号: 2006BAC02A08)和中科院知识创新工程课题(批准号: KGCX2-YW-215-2)资助.

Abstract

Abstract: The observed kinetics study of Methylene diphenyl dicarbamate decomposition was investigated in the presence of diisooctyl sebacate. A consecutive reaction model was established by simplifying the decomposition process and the two steps were conformed to be the first-order by integral test model and numerical differential method, respectively. The results showed that the activation energies of the two steps are 138.82 kJ/mol and 167.78 kJ/mol, while the frequency factors are 1.51×1012 and 5.33×1014, respectively. Base on the obtained kinetic model, the reaction proceeding can be calculated in given conditions.

Key words: Methylene diphenyl dicarbamate, Methylene Diphenyl Diisocyanate, Observed Kinetics

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ZHANG Qin-Hua, LI Hui-Quan*, LIU Hai-Tao, PEI Yi-Xia. Observed Kinetics Study of Methylene Diphenyl Dicarbamate Thermo-decomposition to Diphenylmethane Diisocyanate[J]. Chem. J. Chinese Universities, 2011, 32(5): 1106.

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Observed Kinetics Study of Methylene Diphenyl Dicarbamate Thermo-decomposition to Diphenylmethane Diisocyanate

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