The point of zero charge of phyllosilicate minerals using the Mular–Roberts titration technique / M. Alvarez-Silva in Minerals engineering, Vol. 23 N° 5 (Avril 2010)  

Public ISBD [article]  inMinerals engineering > Vol. 23 N° 5 (Avril 2010) . - pp. 383–389 Titre : The point of zero charge of phyllosilicate minerals using the Mular–Roberts titration technique Type de document : texte imprimé Auteurs : M. Alvarez-Silva, Auteur ; A. Uribe-Salas, Auteur ; M. Mirnezami, Auteur Année de publication : 2011 Article en page(s) : pp. 383–389 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Sulphide ores Mineral processing Froth flotation Résumé : The point of zero charge (PZC) of electrokinetically anisotropic minerals (chlorite and serpentine) was determined using the Mular–Roberts (M–R) titration technique, and compared to isoelectric point (IEP) obtained from electrophoretic mobility measurements. To validate the M–R technique, the point of zero charge and isoelectric point of two isotropic minerals (alumina and silica) were shown to be comparable. For serpentine and chlorite, respectively, the PZC was found at pH 4.3 and 4.7, while the IEP occurred at pH 4 and DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S089268750900291X [article] The point of zero charge of phyllosilicate minerals using the Mular–Roberts titration technique [texte imprimé] / M. Alvarez-Silva, Auteur ; A. Uribe-Salas, Auteur ; M. Mirnezami, Auteur . - 2011 . - pp. 383–389. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 23 N° 5 (Avril 2010) . - pp. 383–389 Mots-clés : Sulphide ores Mineral processing Froth flotation Résumé : The point of zero charge (PZC) of electrokinetically anisotropic minerals (chlorite and serpentine) was determined using the Mular–Roberts (M–R) titration technique, and compared to isoelectric point (IEP) obtained from electrophoretic mobility measurements. To validate the M–R technique, the point of zero charge and isoelectric point of two isotropic minerals (alumina and silica) were shown to be comparable. For serpentine and chlorite, respectively, the PZC was found at pH 4.3 and 4.7, while the IEP occurred at pH 4 and DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S089268750900291X

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