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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The binary (solid plus liquid) phase diagrams of (caprylic or capric acid) + (1-octanol or 1-decanol)

Full text
Author(s):
Carareto, Natalia D. D. [1] ; Castagnaro, Thamires [1] ; Costa, Mariana C. [2] ; Meirelles, Antonio J. A. [1]
Total Authors: 4
Affiliation:
[1] Univ Estadual Campinas, Food Engn Fac, EXTRAE, Dept Food Engn, BR-13083862 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Appl Sci, BR-13484350 Limeira, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF CHEMICAL THERMODYNAMICS; v. 78, p. 99-108, NOV 2014.
Web of Science Citations: 6
Abstract

In the present study the phase diagrams of four (fatty acid + fatty alcohol) binary mixtures composed of caprylic (C8O2) or capric acid (C10O2) + 1-octanol (C8OH) or 1-decanol (C10OH) were obtained by differential scanning calorimetry (DSC). Eutectic and peritectic reactions occurred in the systems. In standard DSC analyses of the (C8O2 + C10OH) and (C10O2 + C8OH) systems, an exothermic transition occurs in association with the melting of a metastable phase. A Stepscan DSC method was used in order to avoid the formation of this metastable phase during the heating of the mixtures. The approach suggested by Slaughter and Doherty (1995) {[}24] was used for modeling the solid phase, and the Margules 2-suffix, Margules 3-suffix and NRTL models were applied for calculating the activity coefficients of the liquid phase. The best modeling results were obtained using the Margules-3-suffix with an average deviation between experimental and calculated values ranging from T = (0.3 to 0.9) K. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/05027-1 - Solid-liquid equilibrium of fatty compounds and biodiesel flash point
Grantee:Mariana Conceição da Costa
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants
FAPESP's process: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
Grantee:Antonio José de Almeida Meirelles
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants