Thermodynamics of ternary mixtures containing sugars. SLE of D-fructose in pure and mixed solvents. Comparison between modified UNIQUAC and modified UNIFAC

• Tipo: Artigo em Revista Científica Internacional
• Data: 2001

Autores

Maria Eugénia Macedo (Autor) FEUP; Peres, AM (Autor) Outra

Revista

Título: Industrial & Engineering Chemistry Research

Vol. 40

Páginas: 4633-4640

ISSN: 0888-5885

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 34 Citações

ISI Web of Science

Scopus - 38 Citações

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Outras Informações

ID Authenticus: P-000-T0P

DOI: 10.1021/ie0102596

Abstract (EN): New experimental data on the solubilities of D-fructose in the mixed solvents water/ethanol, water/methanol, and ethanol/methanol at 25, 40, and 60 degreesC are presented. These data were obtained using a standard, simple, and accurate experimental technique. Therefore, the database generated in our laboratory throughout a 4-year project now contains 205 solubility data points for systems with D-glucose, sucrose, and D-fructose in pure water, ethanol, and methanol and their mixtures. All of these data were correlated using the modified UNIQUAC, the entropic free-volume, and the original Flory-Huggins models, and the new parameters are given. The modified UNIQUAC model is the more accurate for the representation of the data. At the same time, predictions obtained with two different UNIFAC methods are compared.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8