Determination and measurement of solid–liquid equilibrium for binary fatty acid mixtures based on NRTL and UNIQUAC activity models

The estimation of solid–liquid phase equilibrium is important for the design, development, and operation of many industrial processes because of application in many manufacturing fields such as cosmetic, pharmaceutic, and biotechnology industries. In this work, we measured solid–liquid phase equilib...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2019-07, Vol.137 (2), p.679-688
Main Authors: Mirpoorian, Seyed Mohammadreza, Vakili, MohammadHassan, Noie Baghban, Seyed Hossein, Roohi, Pejman
Format: Article
Language:English
Subjects:
Analytical Chemistry
Binary mixtures
Chemistry
Chemistry and Materials Science
Cosmetics industry
Equilibrium
Fatty acids
Inorganic Chemistry
Latent heat
Liquid phases
Measurement
Measurement Science and Instrumentation
Phase equilibria
Physical Chemistry
Polymer Sciences
Saturated fatty acids
Stearic acid
Thermodynamics
Weather forecasting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The estimation of solid–liquid phase equilibrium is important for the design, development, and operation of many industrial processes because of application in many manufacturing fields such as cosmetic, pharmaceutic, and biotechnology industries. In this work, we measured solid–liquid phase equilibrium of six fatty acid binary mixtures using the DSC technique and developed thermodynamic approaches for binary fatty acid mixtures to estimate melting temperatures as a function of mole fraction in solid–liquid phase equilibrium. Derivation of NRTL and UNIQUAC activity models was developed to predict melting temperatures and latent heat to achieve eutectic points of undecylic acid, pentadecylic acid, margaric acid, and stearic acid six pairwise binary mixtures. The fatty acids eutectic mixtures are appropriate for heat water systems, phase clothes, concrete, and other similar applications. The results showed low deviations from experimental data measured in this study.
ISSN:1388-6150
1588-2926
DOI:10.1007/s10973-018-7876-5