Abstract Solubility and liquid–liquid equilibria data for ternary systems for (water + 1,6-hexanediol + 1-butanol/2-methyl-1-propanol) were obtained at (293.15–323.15) K under atmospheric pressure. The LLE data were determined using a double-jacketed glass vessel, and the solubility curves were acquired by the cloud-point method. The distribution coefficient and separation factors were calculated and the reliability of experimental data was assessed by the Othmer–Tobias equation and Hand equation. The measured LLE data were fitted by NRTL and UNIQUAC models and binary parameters were obtained by using of Aspen Plus software. The calculated root-mean-square deviation values show that the calculated results from models showed good agreement with experimental data.

中文翻译：

---

（水 + 1,6-己二醇 + 1-丁醇或 2-甲基-1-丙醇）的实验和相关液-液平衡数据

摘要 (水 + 1,6-己二醇 + 1-丁醇/2-甲基-1-丙醇) 三元体系的溶解度和液-液平衡数据是在 (293.15–323.15) K 下在大气压下获得的。LLE 数据使用双夹套玻璃容器测定，溶解度曲线通过浊点法获得。计算分配系数和分离因子，并通过Othmer-Tobias方程和Hand方程评估实验数据的可靠性。实测 LLE 数据通过 NRTL 和 UNIQUAC 模型拟合，并使用 Aspen Plus 软件获得二元参数。计算的均方根偏差值表明模型的计算结果与实验数据显示出良好的一致性。