Influence of the roughness and shape of quartz particles on their flotation kinetics

  • Mehdi Rahimi
  • Fahimeh Dehghani
  • Bahram Rezai
  • Mohammad Reza Aslani
Article

Abstract

Surface roughness and shape play an important role on the behavior of particles in various processes such as flotation. In this research, the influence of different grinding methods on the surface roughness and shape characteristics of quartz particles as well as the effect of these parameters on the flotation of the particles was investigated. The surface roughness of the particles was determined by measuring their specific surface area via the gas adsorption method. The shape characteristics of the particles were measured and calculated by images obtained by scanning electron microscopy via an image analysis system. The flotation kinetics was determined using a laboratory flotation cell. The results showed that the particles of rod mill products have higher roughness and elongation ratio and lower roundness than the particles of ball mill products. The flotation kinetics constant of the particles increased with their surface roughness increasing. Particles with higher elongation and lower roundness indicated higher floatability. In addition, the influence of the surface roughness on the flotation kinetics was greater than that of shape parameters.

Keywords

flotation kinetics quartz shape parameters surface roughness 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    H. Kuopanportti, T, Suorsa, O. Dahl, and J. Niinimäki, A model of conditioning in the flotation of a mixture of pyrite and chalcopyrite ores, Int. J. Miner. Process., 59(2000), p.327.CrossRefGoogle Scholar
  2. [2]
    R.R. Klimpel, Optimizing the industrial flotation performance of sulfide minerals having some natural floatability, Int. J. Miner. Process., 58(2000), p.77.CrossRefGoogle Scholar
  3. [3]
    M. Xu, Modified flotation rate constant and selectivity index, Miner. Eng., 11(1998), p.271.CrossRefGoogle Scholar
  4. [4]
    J.F. Oliveira, S.M. Saraiva, J.S. Pimenta, and A.P.A. Oliveira, Kinetics of pyrochlore flotation from Araxa mineral deposits, Miner. Eng., 14(2001), p.99.CrossRefGoogle Scholar
  5. [5]
    G.E. Agar, J. Chia, and C.L. Requis, Flotation rate measurements to optimize an operating circuit, Miner. Eng., 11(1998), p.347.CrossRefGoogle Scholar
  6. [6]
    E.C. Çilek, Estimation of flotation kinetic parameters by considering interactions of the operating variables, Miner. Eng., 17(2004), p.81.CrossRefGoogle Scholar
  7. [7]
    C. Hiçyilmaz, U. Ulusoy, and M. Yekeler, Effects of the shape properties of talc and quartz particles on the wettability based separation processes, Appl. Surf. Sci., 233(2004), p.204.CrossRefGoogle Scholar
  8. [8]
    U. Ulusoy, C. Hiçyılmaz, and M. Yekeler, Role of shape properties of calcite and barite particles on apparent hydrophobicity, Chem. Eng. Process., 43(2004), p.1047.CrossRefGoogle Scholar
  9. [9]
    H. Kursun and U. Ulusoy, Influence of shape characteristics of talc mineral on the column flotation behavior, Int. J. Miner. Process., 78(2006), p.262.CrossRefGoogle Scholar
  10. [10]
    J.F. Oliver, C. Huh, and S.G. Mason, An experimental study of some effects of solid surface roughness on wetting, Colloids Surf., 1(1980), p.79.CrossRefGoogle Scholar
  11. [11]
    W.A. Ducker, R.M. Pashley, and B.W. Ninham, The flotation of quartz using a double-chained cationic surfactant, J. Colloid Interface Sci., 128(1988), p.66.CrossRefGoogle Scholar
  12. [12]
    D. Feng and C. Aldrich, A comparison of the flotation of ore from the Merensky Reef after wet and dry grinding, Int. J. Miner. Process., 60(2000), p.115.CrossRefGoogle Scholar
  13. [13]
    M. Krasowska and K. Malysa, Kinetics of bubble collision and attachment to hydrophobic solids: I. Effect of surface roughness, Int. J. Miner. Process., 81(2007), p.205.CrossRefGoogle Scholar
  14. [14]
    I. Szleifer, A. Ben-Shaul, and W.M. Gelbert, Chain statistics in micelles and bilayers: effects of surface roughness and internal energy, J. Chem. Phys., 85(1986), p.5345.CrossRefGoogle Scholar
  15. [15]
    M.J. Jaycock and G.D. Parfitt, Chemistry of Interfaces, Ellis Horwood Publications, 1981, p.156.Google Scholar
  16. [16]
    M.E. Hodson, M.R. Lee, and I. Parsons, Origins of the surface roughness of unweathered alkali feldspar grains, Geochim. Cosmochim. Acta, 61(1997), p.3885.CrossRefGoogle Scholar
  17. [17]
    A.M. Vieira and A.E.C Peres, The effect of amine type, pH, and size range in the flotation of quartz, Miner. Eng., 20(2007), p.1008.CrossRefGoogle Scholar

Copyright information

© University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Mehdi Rahimi
    • 1
  • Fahimeh Dehghani
    • 1
  • Bahram Rezai
    • 1
  • Mohammad Reza Aslani
    • 2
  1. 1.Department of Mining and Metallurgical EngineeringAmirkabir University of TechnologyTehranIran
  2. 2.Department of Mining Engineering, Science and Research BranchIslamic Azad UniversityTehranIran

Personalised recommendations