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| 二苯甲烷二氨基甲酸甲酯热分解制备二苯甲烷二异氰酸酯的表观动力学研究 | |
| 引用本文： | 张琴花,李会泉,柳海涛,裴义霞.二苯甲烷二氨基甲酸甲酯热分解制备二苯甲烷二异氰酸酯的表观动力学研究[J].高等学校化学学报,2011,32(5):1106-1111. |
| 作者姓名： | 张琴花 李会泉 柳海涛 裴义霞 |
| 作者单位： | 1. 中国科学院过程工程研究所绿色过程工程实验室,湿法冶金清洁生产技术国家工程研究中心,北京,100190;中国科学院研究生院,北京,100049 2. 中国科学院过程工程研究所绿色过程工程实验室,湿法冶金清洁生产技术国家工程研究中心,北京,100190 |
| 基金项目： | 国家科技支撑重大项目课题，中科院知识创新工程课题 |
| 摘 要： | 研究了在癸二酸二(2-乙基己基)酯溶剂中二苯甲烷二氨基甲酸甲酯(MDC)热分解产生二苯甲烷二异氰酸酯(MDI)的反应机理,建立了二苯甲烷二氨基甲酸甲酯的分解反应动力学模型.通过实验测定,对不同温度下体系中各物质的浓度数据进行线性拟合得到反应速率方程.结果表明,MDC的热分解分为2个步骤,均为一级反应.两步反应的活化能分... |
| 关 键 词： | 二苯甲烷二氨基甲酸甲酯 二苯甲烷二异氰酸酯 动力学 |
| 收稿时间： | 2010-12-28 |
Observed Kinetics Study of Methylene Diphenyl Dicarbamate Thermo-decomposition to Diphenylmethane Diisocyanate |
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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].Chemical Research In Chinese Universities,2011,32(5):1106-1111. | |
| Authors: | ZHANG Qin-Hua LI Hui-Quan LIU Hai-Tao PEI Yi-Xia |
| Institution: | 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 |
| 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. |
| Keywords: | Methylene diphenyl dicarbamate Methylene Diphenyl Diisocyanate Observed Kinetics |
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