Kinetics of Esterification of Lactic Acid with Methanol in the Presence of Cation Exchange Resin Using a Pseudo-Homogeneous Model

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Won Hi Hong¹  Yongwon Seo¹ 

[1] Department of Chemical Engineering, Korea Advanced Institute of Science and Technology

关键词: Lactic Acid;    Methanol;    Esterification;    Cation Exchange Resin;    Pseudo-Homogeneous Model;   

DOI  :  10.1252/jcej.33.128

来源: Maruzen Company Ltd

【 摘 要 】

References(16)Cited-By(20)The kinetics of esterification of lactic acid with methanol in the liquid phase are studied by using a cation exchange resin in the H+ form (DOWEX-50W) as an acid catalyst. Experiments were carried out in a stirred batch reactor at different temperatures (323, 333, 343, 353 K) under atmospheric pressure. The effects of reaction temperature and catalyst loading on the reaction rate are investigated. It is found that catalyst size and stirring speed have no significant effects on reaction rate. The reaction rate data are correlated with a kinetic model based on pseudo-homogeneous catalysis. The activity of resin is compared with that of sulfuric acid as a catalyst. A kinetic equation for describing the reaction catalyzed by cation exchange resin is developed.

【 授权许可】

Unknown