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Measurement and modeling solubility of aqueous multisolute amino-acid solutions / Jan-Bernd Grosse Daldrup in Industrial & engineering chemistry research, Vol. 49 N° 3 (Fevrier 2010)

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1395–1401 Titre : Measurement and modeling solubility of aqueous multisolute amino-acid solutions Type de document : texte imprimé Auteurs : Jan-Bernd Grosse Daldrup, Auteur ; Christoph Held, Auteur ; Feelly Ruether, Auteur Année de publication : 2010 Article en page(s) : pp. 1395–1401 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Measurement--Modeling--Solubility--Aqueous--Multisolute--Amino-Acid--Solutions Résumé : The solubilities of the ternary mixtures l-alanine/l-leucine, l-alanine/l-valine, and l-leucine/l-valine in water were measured at 303 and 323 K. The solubilities of seven binary, eight ternary, and one quaternary amino-acid systems were modeled using the PC-SAFT equation of state. For this purpose, new parameters for l-aspartic acid, l-glutamic acid, l-leucine, and l-tyrosine are presented. The model excellently reproduces binary solubility data with a linear temperature-dependent binary interaction parameter for the solute−solvent interaction. PC-SAFT allows for a very good prediction of the solubility behavior of ternary mixtures over a wide range of temperature and concentration. The aqueous mixture with three amino acids is then predicted without any further adjustment with an average relative deviation of 3.34%. ISSN : 0888-5885 [article] Measurement and modeling solubility of aqueous multisolute amino-acid solutions [texte imprimé] / Jan-Bernd Grosse Daldrup, Auteur ; Christoph Held, Auteur ; Feelly Ruether, Auteur . - 2010 . - pp. 1395–1401. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 3 (Fevrier 2010) . - pp. 1395–1401 Mots-clés : Measurement--Modeling--Solubility--Aqueous--Multisolute--Amino-Acid--Solutions Résumé : The solubilities of the ternary mixtures l-alanine/l-leucine, l-alanine/l-valine, and l-leucine/l-valine in water were measured at 303 and 323 K. The solubilities of seven binary, eight ternary, and one quaternary amino-acid systems were modeled using the PC-SAFT equation of state. For this purpose, new parameters for l-aspartic acid, l-glutamic acid, l-leucine, and l-tyrosine are presented. The model excellently reproduces binary solubility data with a linear temperature-dependent binary interaction parameter for the solute−solvent interaction. PC-SAFT allows for a very good prediction of the solubility behavior of ternary mixtures over a wide range of temperature and concentration. The aqueous mixture with three amino acids is then predicted without any further adjustment with an average relative deviation of 3.34%. ISSN : 0888-5885