Model Development of Slag Foaming.

DOI Web Site 被引用文献4件 参考文献25件
  • Ghag Surinder S.
    RGC Mineral Sands
  • Hayes Peter C.
    Department of Mining, Minerals and Materials Engineering, The University of Queensland
  • Lee Hae-Geon
    Department of Materials Science and Metallurgical Engineering, Pohang University of Science and Technology

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A general model of foaming has been developed which relates the structure of a foam stabilised by viscoelastic forces to the bubble rupturing processes. For the specific case of negligible bubble coalescence within the foam it has been shown that, in the region of linearity between the foam height and gas flux, the residence time of gas in the foam (Σ) is solely a function of the bubble diameter (d), the liquid phase density (ρ) and viscosity (μ), and the effective elasticity (Eeff) resulting from the dynamic adsorption of surface active species:<br><br>Σ=1×106((pg)2d3 μ·Eeff)<br><br>The model, which shows that the gas bubble diameter has the greatest effect on the retention of gas bubbles within the foam, has been found to be applicable to a range of system in which foams are stabilised by viscoelastic forces.

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