A Heterogeneous Kinetic Model of the Oxidative Polymerization of 2,6-Dimethylphenol with a Copper-EDTA Complex in Water

被引：6
|
作者：
Liu, Qun [1 ]
Shentu, Baoqing [1 ]
Gu, Cheng [1 ]
Zhu, Jinhua [1 ]
Weng, Zhixue [1 ]
机构：
[1] Zhejiang Univ, State Key Lab Chem Engn, Dept Chem & Biochem Engn, Hangzhou 310027, Peoples R China
来源：
AICHE JOURNAL | 2009年 / 55卷 / 10期
关键词：
2,6-dimethylphenol; oxidative polymerization; a copper-EDTA complex; kinetic model; water; AQUEOUS-MEDIUM; 2.6-XYLENOL;
D O I：
10.1002/aic.11884
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The heterogeneous oxidative polymerization kinetics of 2,6-dimethylphenol (DMP) catalyzed by a copper(II)-EDTA complex in water was studied. During the oxidative polymerization of DMP in water the oxygen uptake rate increases with an increase in DMP concentration and an increase in temperature. The Michaelis-Menten kinetic model as applied to the polymerization of DMP in organic solvents is not appropriate for the description of the full course of DMP polymerization in water. A new heterogeneous kinetic model is proposed to describe the catalyst deactivation during the oxidative polymerization as well as the difference in reactivity between the monomer, water-soluble oligomer and water-insoluble oligomer. The polymerization rate estimated by the new model is consistent with the measured data. (C) 2009 American Institute of Chemical Engineers AIChE J, 55: 2716-2724, 2009
引用
收藏
页码：2716 / 2724
页数：9
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