Resumo (PT):
Numerous molecules in the pharmaceutical, food and chemical industries present
complex chemical structures with different functional group substitutions. Many of these
groups such as amine, carboxyl and hydroxyl can form hydrogen bonds. To adequately
describe the phase equilibria of these complex chemicals, models able to take into
account association effects are required. Still, for model development and evaluation,
experimental data on some representative systems are needed. In this work, new
experimental measurements and literature data were combined to develop a
methodology to model the phase equilibria of phenolic acids using the Cubic-plusAssociation
(CPA) equation of state. A comparison with the UNIQUAC activity
coefficient model is also presented. Within the different classes of multifunctional
associating molecules, phenolic compounds, due to their chemical and biological
importance, are among the most important. Apart from being starting materials for
many chemical syntheses, there is also huge evidence that some phenolic compounds
have beneficial effects on human health.
Language:
English
Type (Professor's evaluation):
Scientific
Notes:
ISBN:978-972-97810-4-9
No. of pages:
2