文献类型：期刊文献

英文题名：Determination of Liquid-Liquid equilibria of ethylene glycol+1,2-Butanediol+5-Methyl-2-hexanone/Di-isobutyl ketone ternary systems

作者：Chen, Guangyuan[1];Shi, Yunhai[1];Shen, Rongchun[2];Li, Wei[1];Zhou, Jinghong[2]

机构：[1]East China Univ Sci & Technol, Res Ctr Chem Engn, Box 368,130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Box 368,130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：168

外文期刊名：JOURNAL OF CHEMICAL THERMODYNAMICS

收录：;EI(收录号：20220511575628);WOS:【SCI-EXPANDED(收录号:WOS:000754172900006)】；

基金：This work was supported by Ministry of science and technology of the People's Republic of China, under the Research Fund for National Key R&D Program of China (2018YFB0604700).

语种：英文

外文关键词：Liquid-liquid equilibrium; Ethylene glycol; 1,2-Butanediol; NRTL; UNIQUAC

摘要：Two kinds of ketones, 5-methyl-2-hexanone and di-isobutyl ketone were selected as the extraction agents for separating the azeotrope of ethylene glycol (EG)and 1,2-butanediol (1,2-BDO). By comparing the results of preliminary extraction experiments under 303.15 K and normal pressure, 5-methyl-2-hexanone was the better one. And the Liquid-liquid equilibrium data of EG + 1,2-BDO + 5-methyl-2-hex anone ternary system were successively measured at 293.15 K and 313.15 K. The distribution coefficient (K-2) and selectivity coefficient (S) of 1,2-BDO were calculated from the experimental data. The LLE data were correlated by NRTL and UNIQUAC activity models with the authorized Aspen Plus software. The root mean square deviations (RD) between the experimental and calculated values were all less than 0.7%, which means they were consistent with each other very well. (C) 2022 Elsevier Ltd.