Liquid-liquid equilibria, solubility and critical states in the system propionic acid-1-propanol - n-propyl propionate - water at 303.15 K

被引：2
作者：
Toikka, Maria [1 ]
Podryadova, Kristina [1 ]
Kudryashova, Anastasia [1 ]
机构：
[1] St Petersburg State Univ, Dept Chem Thermodynam & Kinet, Univ Skiy Prospect 26, St Petersburg 198504, Russia
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2021年 / 152卷
基金：
俄罗斯基础研究基金会;
关键词：
Liquid-liquid equilibria; Solubility; Critical phenomena; Quaternary system; N-propyl propionate; NRTL; ETHYL ACETATE-WATER; REACTIVE DISTILLATION; ACETIC-ACID; MODEL VALIDATION; DIESEL-ENGINE; ETHANOL; PROPANOL; BUTANOL; PERFORMANCE; SURFACE;
D O I：
10.1016/j.jct.2020.106265
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
New experimental data on liquid-liquid equilibria (LLE), solubility and critical states in quaternary system propionic acid - 1-propanol - n-propyl propionate - water at 303.15 K and atmospheric pressure are presented. LLE was studied by Gas Chromatography (GC). Solubility and critical (plait) points were investigated by "cloud-point technique" method. Binodal curves and surfaces are presented in concentration tetrahedron. The critical curve is presented in 3d concentration space. A comparative analysis of the results obtained in the work with literature data is carried out. The experimental data are correlated by NRTL model. Standart deviation sigma for quaternary mixture does not exceed 0.344%. (C) 2020 Elsevier Ltd.
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页数：9
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