Liquid–liquid equilibrium of 1-butanol + water + tri-n-butyl phosphate + ammonium chloride system

• DOI: 10.1016/j.fluid.2014.06.023
• Publication Date: 2014-07-08T14:45:27Z
• Authors: Shan Mo; Jun Li; Yang Jin; Jianhong Luo; Xuhong Jia; Xi Chen
• Keywords: Tri-N-butyl Phosphate; Ammonium chloride; Vapor–liquid equilibrium; Liquid liquid

Abstract In this paper, the liquid–liquid equilibrium (LLE) and tie-line data of the system containing 1-butanol + water + tri-n-butyl phosphate (TBP) + ammonium chloride have been studied at 298.15, 308.15 and 318.15 K under atmospheric pressure. The influence of temperature and different concentrations of ammonium chloride have been investigated. In addition, nonrandom two-liquid (NRTL) model is applied to the system, and the relevant interaction parameters are regressed with the experimental data. The quality of the correlation is measured by the rmsd ( rmsd ≤ 0.0131 ). The results show that the calculated values by NRTL model are in agreement with the determination of LLE data of the studied system in the investigated conditions.