In the reported study, experimental liquid–liquid equilibrium (LLE) data for extracting isopropanol from cyclohexane utilizing 1,4-butanediol, 1,2-propanediol, dimethyl sulfoxide, and N,N-dimethylformamide as solvents were obtained at 303.2 K and atmospheric pressure. The separation factors derived from experimentally measured LLE data were computed to determine the extracting capability of the different solvents, and Othmer–Tobias, Hand, and Bachman equations were used to estimate the reliability and consistency of the LLE data. In addition, the nonrandom two-liquid (NRTL) thermodynamic model in Aspen Plus software was used to regress the LLE data, providing optimized binary interaction parameters. The regression results agreed well with the experimentally determined LLE values, indicating that the NRTL method was suitable to correlate the LLE data for the four ternary systems.

中文翻译：

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不同溶剂从环己烷中提取异丙醇的液-液平衡的测量与关联

在已报道的研究中，利用1,4-丁二醇，1,2-丙二醇，二甲基亚砜和N，N从环己烷中提取异丙醇的实验液-液平衡（LLE）数据在303.2K和大气压下获得作为溶剂的-二甲基甲酰胺。计算来自实验测量的LLE数据的分离因子，以确定不同溶剂的提取能力，并使用Othmer-Tobias，Hand和Bachman方程式估算LLE数据的可靠性和一致性。此外，使用Aspen Plus软件中的非随机两液（NRTL）热力学模型对LLE数据进行回归，从而提供了优化的二元相互作用参数。回归结果与实验确定的LLE值非常吻合，表明NRTL方法适合于关联四个三元系统的LLE数据。