The liquid–liquid equilibrium (LLE) experiments for n-butanol + n-hexane + ethylene glycol were carried out and LLE data were measured at 298.15, 303.15, 308.15, 313.15, and 323.15 K under atmospheric pressure. The analysis results of the effects of n-butanol content and temperature on extraction showed that high n-butanol content was not favorable for extraction, and temperature had little effect on extraction. Moreover, the NRTL and UNIQUAC models were applied to correlate the LLE data, and the correlated data indicated that the UNIQUAC model showed a better correlation performance.

中文翻译：

---

液-液平衡的三元体系ñ丁醇+ ñ正己烷+乙二醇在298.15-323.15ķ

液-液平衡（LLE）实验用于ñ丁醇+ Ñ己烷+乙二醇进行了和298.15，303.15，308.15，313.15，323.15和在大气压下K含量测定LLE数据。对正丁醇含量和温度对萃取影响的分析结果表明，高正丁醇含量不利于萃取，温度对萃取的影响很小。此外，应用NRTL模型和UNIQUAC模型对LLE数据进行相关，相关数据表明UNIQUAC模型具有较好的相关性能。