Determination and Correlation of Liquid–Solid Phase Behaviors of Polyhydric Alcohol + KBr + H2O Ternary Systems at 288.15, 298.15, And 308.15 K. Issue 1 (2nd January 2016)

• Record Type: Journal Article
• Authors: Zhao, Dan-Dan; Li, Shu-Ni; Zhang, Hui-Ying; Zhai, Quan-Guo; Jiang, Yu-Cheng; Hu, Man-Cheng
• Is Part Of: Chemical engineering communications. Volume 203:Issue 1(2016)
• Page Start: 136
• Page End: 149
• Publication Date: 2016-01-02
• Subjects: KBr -- NRTL model -- Phase behavior -- Polyhydric alcohol -- Ternary system; Chemical engineering -- Periodicals; 660.205
• DOI: 10.1080/00986445.2014.970255
• Languages: English
• ISSNs: 0098-6445

Abstract

Abstract : The solubility, density, and refractive index of 1, 2-propanediol + KBr + H2 O, ethylene glycol + KBr + H2 O, and glycerin + KBr + H2 O ternary systems are determined at 288.15, 298.15, and 308.15 K. In all cases, the solubility of KBr decreases with increasing concentration of polyhydric alcohol. The liquid–solid equilibrium experimental data are correlated using the nonrandom two-liquid (NRTL) activity coefficient model, considering nondissociation of the dissolved salt in the liquid phase, and new interaction parameters are estimated. The mean deviations show a good applicability of the NRTL model. Simultaneously, the corresponding unsaturated systems are investigated, and the concentration factors are discussed.