文献类型：期刊文献

英文题名：Liquid-liquid equilibria for ternary systems polyoxymethylene dimethyl ethers + para-xylene + water

作者：Zhuang, Zhihai[1]; Zhang, Jianqiang[1]; Liu, Xianke[1]; Liu, Dianhua[1]

机构：[1] State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2016

卷号：101

起止页码：190

外文期刊名：Journal of Chemical Thermodynamics

收录：EI(收录号：20162402498512)

语种：英文

外文关键词：Phase equilibria - Solvent extraction - Ternary systems - Xylene - Acetal resins - Solutions - Fuels

摘要：Polyoxymethylene dimethyl ethers (PODEn) are promising diesel additives which can be synthesized from formaldehyde and methanol. In this work, the ternary liquid-liquid equilibria (LLE) were analytically determined at 293.15 K and 313.15 K for the following systems: PODE1 + para-xylene (PX) + water, PODE2 + PX + water, PODE3 + PX + water, PODE4 + PX + water, respectively. The isothermal experimental results have shown a good linear fit in Hand plots and the Othmer-Tobias. The design of the solvent extraction equipment for extracting PODEn from aqueous solution requires an appropriate model for the liquid-liquid phase equilibrium. The well-known NRTL and UNIQUAC thermodynamic models were applied to correlate the experimental data, and the results indicate that the UNIQUAC model gives a better agreement. ? 2016 Elsevier Ltd.