Solid–liquid equilibrium, excess molar volume, and deviations in the molar refractivity for the binary and ternary mixtures of Alamine 304-1 with 1-octanol, 2-octanol, and 1-decanol

• Published in: Fluid phase equilibria 2012-06, Vol.324, p.44-49
• Main Authors: Kwon, Rak-Hyun, Kim, Jae-Ik, Park, So-Jin, Choi, Young-Yoon
• Format: Article
• Language: English
• Subjects: 1-Decanol; 1-octanol; 2-Octanol; Alamine 304-1; Chemistry; Correlation; Deviation; Exact sciences and technology; Excess property; Fluid dynamics; General and physical chemistry; Mathematical analysis; Molar volume; Phase equilibria; Refractivity; Solid–liquid equilibrium; Solvents; Visual
• ISSN: 0378-3812; 1879-0224
• DOI: 10.1016/j.fluid.2012.03.025

► Alamine 304-1 is selective solvent in the extraction of molybdenum (Mo). ► SLE data for the systems {Alamine 304-1+1-octanol}, {Alamine 304-1+2-octanol} and {Alamine 304-1+1-decanol}. ► NRTL and UNIQUAC models were used for the description of the determined SLE data. ► VE and ΔR the selectivities of the {Alamine 304-1+1-octanol}, {Alamine 304-1+2-octanol} and {Alamine 304-1+1-decanol} were measured. The solid–liquid equilibrium (SLE) of binary systems containing Alamine 304-1 (tri-dodecylamine), which used as a selective solvent in the extraction of molybdenum (Mo), was measured at atmospheric pressure by the visual method. The experimental SLE data for mixtures of Alamine 304-1+1-octanol, Alamine 304-1+2-octanol, and Alamine 304-1+1-decanol were then correlated to the non-random two-liquid (NRTL) and universal quasi-chemical (UNIQUAC) equations. We correlated the excess molar volume (VE) and deviations in molar refractivity (ΔR) of the aforementioned binary mixtures at 298.15K using the Redlich–Kister equation. The VE and ΔR of the ternary mixtures Alamine 304-1+1-octanol+2-octanol, Alamine 304-1+1-octanol+1-decanol, Alamine 304-1+2-octanol+1-decanol, and 1-octanol+2-octanol+1-decanol were predicted by the Radojkovič equation using the correlated binary Redlich–Kister parameters.