Hydrolysis of Dimethyl Terephthalate for the Production of Terephthalic Acid

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Myungsang Sim¹  Myungwan Han¹ 

[1] Department of Chemical Engineering, Chungnam National University

关键词: Terephthalic Acid;    Dimethyl Terephthalate;    Hydrolysis;    Mono Methyl Terephthalate;    Kinetics;   

DOI  :  10.1252/jcej.39.327

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Hydrolysis of dimethyl terephthalate (DMT) to produce terephthalic acid (TPA) was studied using a batch reactor. Zink acetate was used as a catalyst to promote the reaction rate. We found that the reaction consists of two reactions: from DMT to mono methyl terephthalate (MMT) and then MMT to TPA. The first reaction is relatively fast and irreversible while the second reaction is relatively slow and reversible. A kinetic equilibrium constant for the second reaction decreases with reaction temperature. A kinetic model consisting of the two reactions for the hydrolysis fitted well with the experimental data.

【 授权许可】

Unknown