Abstract
Flotation is based on attachment of the mineral particle to an air bubble. As mineral particles are suspended in water the air bubble has to displace water from the surface of the mineral and make an effective contact, which occurs when the mineral surface is or lias been made hydrophobic to an appreciable degree. A measure of hydrophobicity of the mineral particle is the extent to which the air bubble displaces water for the solid surface. This can be understood from an analysis of thermodynamic aspects of the bubble-mineral contact.
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8.10. Selected Readings
Adamson, A. W. (1990), Physical Chemistry of Surfaces, John Wiley, New York
Finch, J. A. and Smith, G. W. (1979), Contact angle and wetting. Mineral Sci. Eng.11, 36–
Fowkes, F. M., ed. (1963), Contact Angle, Wettability, and Adhesion, American Chemical Society, Washington, DC.
Fowkes, F. M. (1964), Attractive forces at interfaces. Ind. Eng. Chem.56, (12), 40–
Fowkes, F. M., ed. (1969), Hydrophobie Surfaces, Academic Press, New York
Franks, F. (1975), The hydrophobic interaction, in Water, A Comprehensive Treatise, Vol. 4, F. Franks, ed., Plenum Press, New York, pp. 1–94.
Gould, R. F. ed. (1964), Contact Angle, IVettability, and Adhesion, American Chemical Society, Washington, DC.
Gould, R. F. ed. (1966), Coal Science, Advances in Chemistry Series No. 55, American Chemical Society, Washington, D
Johnson, R. E. and Dettre R. H. (1993), Wettability of low energy surfaces, in Wettability, ed. J. C. Berg, Marcel Dekker, new York, pp. 1–74
Harkins, W. D. (1952), Physical Chemistry of Surface Films, Reinhold, New York
Hayes, R. M., Price, D. M, Ralston, J. and Smith, R. W. (1987), Collectorless flotation of sulfide minerals, Mineral Process. Extract. Metall. 2, 1–2
Miller, C. A. and Neogi, P. (1985), Interfacial Phenomena, Marcel Dekker, New York
Padday, J. F., ed. (1978), Wetting, Spreading and Adhesion, Academic Press, London
Ralston, J. and Newcombe, G. (1992), Static and dynamic contact angles, in Colloids in Mineral Processing,eds., J. S. Laskowski and J. Ralston, Elsevier, Amsterdam, pp. 173–202.
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Rao, S.R. (2004). Hydrophobicity and Contact Angle. In: Surface Chemistry of Froth Flotation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4302-9_8
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DOI: https://doi.org/10.1007/978-1-4757-4302-9_8
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