In this study, four ternary liquid–liquid equilibrium systems containing a solvent, furfural, and water were investigated by performing liquid–liquid equilibrium measurements at two different temperatures. The solvents were n-pentyl acetate, n-hexyl acetate, n-pentanol, and n-hexanol. The measurements were compared to the literature data and modeled with the UNIQUAC (universal quasi-chemical) activity coefficient model by taking into account also the vapor–liquid, liquid–liquid, and vapor–liquid–liquid equilibrium behaviors if present. n-Hexyl acetate showed the smallest solubility in water both in binary and ternary measurements. All four ternary systems showed similar magnitude distribution coefficients but furfural had the highest selectivity to n-hexyl acetate. Among the four systems investigated in this work, n-hexyl acetate was observed to have the best characteristics as a solvent for the extraction of furfural from water.

中文翻译：

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液-液平衡Ñ戊基乙酸酯，Ñ己基乙酸酯，Ñ戊醇，或Ñ己醇+ +糠醛水系统在298和323K下

在这项研究中，通过在两个不同温度下进行液-液平衡测量，研究了包含溶剂，糠醛和水的四个三元液-液平衡系统。的溶剂是Ñ乙酸戊基，Ñ乙酸-己基，Ñ戊醇，和Ñ己醇。将测量值与文献数据进行比较，并通过考虑气-液，液-液和气-液-液平衡行为（如果存在），使用UNIQUAC（通用准化学）活度系数模型进行建模。ñ在二元和三元测量中，乙酸己酯在水中的溶解度最小。所有四个三元系统均显示出相似的幅度分布系数，但糠醛对乙酸正己酯的选择性最高。在这项工作研究的四个系统中，观察到乙酸正己酯作为从水中提取糠醛的溶剂具有最佳特性。