Model of aggregation of solid particles in nonwetting liquid medium

Michel Cournil (1, 2, 3) , Frédéric Gruy (1, 2, 3) , Patrick Cugniet (1, 2, 3) , Pascal Gardin (4) , Hubert Saint Raymond (4)

1 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
2 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires
3 GENERIC-ENSMSE - Département Géochimie, environnement, écoulement, réacteurs industriels et cristallisation
4 ArcelorMittal Maizières Research SA

Problem of modelling solid particles aggregation in non-wetting liquids is in close relation with the problem of interactions between hydrophobic particles in water. Hydrophobic aggregation is discussed from a thermodynamic point of view, then the main aspects of aggregation dynamics are envisaged in the particular conditions created by non-wetting. Consequences on aggregation and fragmentation kernels are studied. An experimental illustration is provided.

Mots clés: Aggregation dynamics; non-wetting liquids; Hydrophobic aggregation; liquid steel; hydrophobic interactions; gaseous cavities; fragmentation; turbidity

Domaines: Génie des procédés

Michel Cournil, Frédéric Gruy, Patrick Cugniet, Pascal Gardin, Hubert Saint Raymond. Model of aggregation of solid particles in nonwetting liquid medium. 15th International Symposium on Industrial Crystallization, Sep 2002, Sorrento, Italy. Non paginé. ⟨hal-00625663⟩