催化反应精馏法制D-乳酸的研究  

RESEATCH OF REACTIVE DISTILLATION PROCESS FOR THE SYNTHESIS OF D-LACTIC ACID

作　　者：李泽壮[1] 刘经伟[1] 方晓江[1] Li Zezhuang;Liu Jingwei;Fang Xiaojiang(Nanjing Research Institute of Sinopec Yangzi Petrochemical Limited Company, Nanjing 210048, Jiangsu, China)

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,江苏南京210048

出　　处：《精细石油化工》2020年第2期21-24,共4页Speciality Petrochemicals

摘　　要：筛选了SHY树脂作为D-乳酸甲酯的水解树脂,考察了树脂水解动力学性能。根据推导的水解动力学方程求取水解、酯化反应的指前因子和活化能。运用Aspen Plus软件对D-乳酸产量为1 kt/a的反应精馏塔进行模拟,发现精馏塔反应段需要9块理论板,其中进料位置以上需3块理论板,进料位置以下需6块理论板。SHY resin was selected as the hydrolysis resin of methyl D-lactate,and its hydrolysis kinetics was investigated.According to the derived hydrolysis kinetics equation,the pre-exponential factors and activation energies were calculated.Aspen Plus software was used to simulate the reaction distillation column with D-lactic acid output of 1 kt/a.It was found that 9 theoretical plates were needed in the reaction section of the distillation column,including 3 theoretical plates above the feed position and 6 theoretical plates below the feed position.

关 键 词：D-乳酸 指前因子 活化能 催化反应精馏 理论板 

分 类 号：TQ225.123[化学工程—有机化工]