Abstract
Liquid-liquid equilibrium (LLE) data of the (water + butyric or 3-methylbutyric acids + methyl isobutyl carbinol) ternary systems were experimentally obtained at T = (298.2, 303.2, and 308.2) K and P = 0.1 MPa for the first time. Using solubility and tie-line measurements, the triangle phase diagrams were obtained and influence of the chemical structure of the acids on the LLE behaviour was studied. The first ternary aqueous system containing butyric acid and the alcohol displays type-1 LLE behaviour, while the second one including 3-methylbutyric acid exhibits type-2 phase diagram. The reliability of the experimental data was checked using the Othmer-Tobias and Hand correlation equations. The UNIQUAC and NRTL thermodynamic models were used to fit the experimental tie line data and values of the corresponding binary interaction parameters were determined. The binary model parameters were optimized by the MATLAB fminsearch function. According to the experimental tie-line data, distribution coefficients and separation factors were determined for the studied systems.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
