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Type: Conference paper
Title: Flotation Rate Constant Prediction for Metal Sulfide Particles
Author: Ralston, J.
Fornasiero, D.
Grano, S.
Duan, F.
Akroyd, T.
Citation: Proceedings: Centenary of Flotation Symposium, 2005 / G. Jameson (ed.): pp.541-556
Publisher: AusIMM
Publisher Place: Australia
Issue Date: 2005
ISBN: 1920806318
Conference Name: Centenary of Flotation Symposium (2005 : Brisbane, Queensland)
Organisation: Institute for Mineral and Energy Resources
Statement of
J Ralston, D Fornasiero, S R Grano, J Duan and T A
Abstract: We have determined the experimental rate constants for chalcopyrite particles floated from a complex sulfide ore and compared them with those calculated using a recently developed flotation model. The model incorporates contributions from the efficiencies of collision, attachment and stability between particles and bubbles, as well as their frequency of collision. For these calculations, the contact angle of the chalcopyrite particles in the ore was obtained independently using a surface spectroscopic approach. The calculated flotation rate constants were in good agreement with the experimental data and able to reproduce the characteristic maximum in flotation rate constant for particles of intermediate size. The values of bubble velocity and turbulent dissipation energy derived from these calculations are relatively low and may well correspond to mean values of these parameters inside the flotation cell. We have extended this approach through the application of a property based model to an operating plant, with a satisfactory outcome.
Rights: Copyright Australasian Institute of Mining and Metallurgy
RMID: 0020109850
Appears in Collections:Institute for Mineral and Energy Resources publications

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