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Ferrous Ion effects on the stability and properties of oil-in-water emulsions formulated by membrane emulsification / Xavier Bernat in Industrial & engineering chemistry research, Vol. 49 N° 8 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3818–3829 Titre : Ferrous Ion effects on the stability and properties of oil-in-water emulsions formulated by membrane emulsification Type de document : texte imprimé Auteurs : Xavier Bernat, Auteur ; Emma Piacentini, Auteur ; Fabio Bazzarelli, Auteur Année de publication : 2010 Article en page(s) : pp. 3818–3829 Langues : Anglais (eng) Mots-clés : Ferrous  Ion  Oil  Water  Emulsions  Membrane  Emulsification Résumé : This study aimed at investigating the effect of the presence of Fe(II) cations on the stability of oil-in-water (O/W) emulsions produced by membrane emulsification. Both stirred and cross-flow emulsification methods have been used. The influence of fluid dynamics parameters and phases composition has been investigated. Results have shown that Fe(II) negatively affects the stability of O/W emulsions and that the destabilization effect increases with Fe(II) concentration. However, emulsion stability also depended on emulsification variables, such as percentage of emulsifier, emulsified oil percentage, and membrane pore size. In particular, the main destabilization phenomenon is the decrease on the net charge of the emulsion droplets, which causes agglomeration of the droplets resulting in coalescence and, in some cases, breakage. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901491k [article] Ferrous Ion effects on the stability and properties of oil-in-water emulsions formulated by membrane emulsification [texte imprimé] / Xavier Bernat, Auteur ; Emma Piacentini, Auteur ; Fabio Bazzarelli, Auteur . - 2010 . - pp. 3818–3829. Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3818–3829 Mots-clés : Ferrous  Ion  Oil  Water  Emulsions  Membrane  Emulsification Résumé : This study aimed at investigating the effect of the presence of Fe(II) cations on the stability of oil-in-water (O/W) emulsions produced by membrane emulsification. Both stirred and cross-flow emulsification methods have been used. The influence of fluid dynamics parameters and phases composition has been investigated. Results have shown that Fe(II) negatively affects the stability of O/W emulsions and that the destabilization effect increases with Fe(II) concentration. However, emulsion stability also depended on emulsification variables, such as percentage of emulsifier, emulsified oil percentage, and membrane pore size. In particular, the main destabilization phenomenon is the decrease on the net charge of the emulsion droplets, which causes agglomeration of the droplets resulting in coalescence and, in some cases, breakage. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901491k