Stable Organic Titanium Catalysts and Reactive Distillation Used for the Transesterification of Dimethyl Carbonate with Phenol

被引：3

作者：

Shen, Weihua ^{[1
]}

Ge, Qing ^{[1
]}

Gu, Kaijie ^{[1
]}

Nie, Yingying ^{[2
]}

Jiao, Linyu ^{[3
]}

Zhu, Zhiqing ^{[1
]}

Fang, Yunjin ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

[2] Shaanxi Coal Chem Ind Technol Res Inst Co Ltd, Xian Hitech Dev Zone, Shaanxi Coal Chem Bldg,2,Jinye Rd, Xian 710070, Shaanxi, Peoples R China

[3] Northwest Univ, Sch Chem Engn, 229 Taibai North Rd, Xian 710069, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2020年 / 43卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Dimethyl carbonate; Methyl phenyl carbonate; Reactive distillation; Titanium chelate; Transesterification; DIPHENYL CARBONATE; KINETICS; TIO2; DMC;

D O I：

10.1002/ceat.202000212

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The transesterification of dimethyl carbonate with phenol to methyl phenyl carbonate (MPC) was investigated on novel catalysts such as titanium diisopropoxide bis(ethyl acetoacetate) and titanium dibutoxide bis(ethyl acetoacetate) in a closed batch reactor at 185-206 degrees C under high pressure. The produced methanol could be removed efficiently by reactive distillation in order to overcome the equilibrium. The prepared catalysts have higher resistance to water than titanium alkoxides. Phenol conversion as high as 86.4 % with an MPC selectivity of 99.4 % was achieved under optimal reaction conditions within 9 h. Most of the catalytic activity was retained after repeated use for ten times.

引用

页码：2359 / 2364

页数：6

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