文献类型：期刊文献

英文题名：Experimental and Correlated Liquid-Liquid Equilibrium Data for Ternary Systems (Water + Poly(oxymethylene) Dimethyl Ethers + Toluene) at T = 293.15 and 303.15 K and p = 101.3 kPa

作者：Li, Xiangjun[1]; Cao, Jiancheng[1]; Nawaz, Muhammad Asif[1]; Hu, Yantao[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：2019

卷号：64

期号：12

起止页码：5548

外文期刊名：Journal of Chemical and Engineering Data

收录：EI(收录号：20194607670995)

语种：英文

外文关键词：Acetal resins - Fuels - Additives - Ethers - Separation - Ternary systems - Liquids

摘要：Poly(oxymethylene) dimethyl ethers (PODEn) are appealing additives for diesel fuels. Nowadays, the research on PODEn synthesis is crucial and essential, while the separation of PODEn from aqueous systems also has great significance for the production of PODEn in industry. In this work, ternary liquid-liquid equilibrium (LLE) data for the mixtures of (water + PODE1 + toluene), (water + PODE2 + toluene), (water + PODE3 + toluene), and (water + PODE4 + toluene) were determined at T = 293.15 and 303.15 K and p = 101.3 kPa. The consistency of experimental LLE data was evaluated by Hand and Othmer-Tobias equations. The distribution coefficients and separation factors were employed to assess the efficiency of extracting PODE1-4 from water. The experimental tie-line data of the studied systems were correlated using the Non-Random Two Liquid and Universal Quasi Chemical (UNIQUAC) activity coefficient models, while the corresponding binary interaction parameters were obtained with the results indicated that the UNIQUAC model gives a better agreement. All of the data demonstrated that toluene was an ideal extractant for separating PODE1-4 from aqueous solution. ? 2019 American Chemical Society.