Study of Relationship between Flotation Rate and Bubble Surface Area Flux using Bubble-Particle Attachment Efficiency
Understanding the attachment micro process is a fundamental step toward predicting the rate constant of flotation kinetics. In this research, the effect of bubble-particle attachment efficiency on k-Sb relationship was investigated under Yoon, Stokes and Potential conditions. Maximum Stokes attachment efficiency obtained was 55.9% with particle size of -37 µm, Sbof 34.2 1/s and flotation rate of 1.65 1/min. Stokes attachment efficiency was less than Yoon efficiency and it seems to be a suitable equation for predicting attachment efficiency. Furthermore, three different models were obtained for estimating attachment efficiency usingk-Sb relationship.
Study of Relationship between Flotation Rate and Bubble Surface Area Flux using Bubble-Particle Attachment Efficiency, American Journal of Chemical Engineering. Special Issue: Flotation Technology.
Vol. 3, No. 2-2,
2015, pp. 6-12.
A.V. Nguyen, J. Ralston, H.J. Schulze, On modeling of bubble–particle attachment probability in flotation, Miner Eng, 53 (1998) 225-249.
W.J. Trahar, The selective flotation of galena from sphalerite with special reference to the effects of particle size, Int J Miner Process, 3 (1976) 151-166.
B.A. Wills, Mineral Processing Technology, 4th edn.Pergamon, New York, (1998).
A.M. Gaudin, J.O. Groh, H.B. Henderson, Effect of particle size on flotation, American Institute of Mining and Metallurgical Engineering, Tech Publ, 414 (1931) 3-23.
R.M. Anthony, D.F. Kelsall, W.J. Trahar, The effect of particle size on the activation and flotation of sphalerite, Proceedings of the Australian Institute of Mining and Metallurgy, 254 (1975) 47-58.
W.J. Trahar, A rational interpretation of the role of particle size in flotation, Int J Miner Process, 8 (1981) 289-327.
H.R. Spedden, W.S. Hannan, Attachment of Mineral Particles to Air Bubbles in Flotation, Min Tech, 12 (1984) 2354.
P.F. Whelan, D.S. Brown, Particle-Bubble Attachment in Froth Flotation, Transactions of the Institute of Mining and Metallurgy, 65 (1956) 181-192.
T.M. Morris, Measurement of Equilibrium Forces between an Air Bubble and an Attached Solid in Water, Trans. AIME 187 (1950) 91-95.
H.J. Schulze, New Theoretical and experimental investigations on stability of bubble-particle aggregates in flotation: A theory on the upper particle size of floatability, Int J Miner Process, 4 (1977) 241-259.
D.A. Deglon, F. Sawyerr, C.T. O’Connor, A model to relate the flotation rate constant and the bubble surface area flux in mechanical flotation cells, Miner Eng, 12 (1999) 599-608.
Shahbazi, B., Rezai, B. and Koleini, S.M. Javad, Noaparast M. (2013) Iran. J. Chem. Chem. Eng., 32: 109-118.
Shahbazi, B., Rezai, B. and Koleini, S.M. Javad, Noaparast M. (2014) Geosciences ScientificQuarterlyJournal, in press.
Shahbazi, B., Rezai, B. (2014) Journal of Dispersion Science and Technology, in press.
S. Chehreh Chelgani, B. Shahbazi, B. Rezai, Estimation of froth flotation recovery and collision probability based on operational parameters using an artificial neural network, Int J Min Met Mater, 17 (2010) 526-534.
B. Shahbazi, B. Rezai, S.M. Javad Koleini, Bubble–particle collision and attachment probability on fine particles flotation, ChemEng Process, 49 (2010) 622–627.
B. Shahbazi, B. Rezai, S.M. Javad Koleini, The effect of hydrodynamic parameters on probability of bubble-particle collision and attachment, Miner Eng, 22 (2009) 57–63.
B. Shahbazi, B. Rezai, S.M. Javad Koleini, Effect of Dimensionless Hydrodynamic Parameters on Coarse Particles Flotation, Asian J Chem, 3 (2008) 2180-2188.
B.K. Gorain, J.P. Franzidis, E.V. Manlapig, Studies on impeller type, impeller speed andair flow rate in an industrial scale flotation cell. Part 1: Effect on bubble size distribution,Miner Eng, 8 (1995a) 615-635.
B.K. Gorain, J.P. Franzidis, E.V. Manlapig, Studies on impeller type, impeller speed andair flow rate in an industrial scale flotation cell. Part 2: Effect on gas holdup, Miner Eng, 8 (1995b) 1557-1570.
B.K. Gorain, J.P. Franzidis, E.V. Manlapig, Studies on impeller type, impeller speed andair flow rate in an industrial scale flotation cell. Part 3: Effect on superficial gas velocity,Miner Eng, 9 (1996a) 639-654.
B.K. Gorain, J.P. Franzidis, E.V. Manlapig, The effect of gas dispersion properties on thekinetics of flotation, Column 96, Proceedings of the 35th Annual Conference of Metallurgists,CIM, Montreal, Canada, (1996b) 299-313.
B.K. Gorain, J.P. Franzidis, E.V. Manlapig, Studies on impeller type, impeller speed and airflow rate in an industrial scale flotation cell. Part 4: Effect of bubble surface area flux on flotationkinetics, Miner Eng, 10 (1997) 367-379.
B.K. Gorain, N. Munn, J.P. Franzidis, E.V. Manlapig, Studies on impeller type,impeller speed and air flow rate in an industrial scale flotation cell. Part 5: Validation of k-Sbrelationship and effect of froth depth, Miner Eng, 11 (1998) 615-626.
E.H. Girgin, S. Do, C.O. Gomez, J.A. Finch, Bubble size as a function of impeller 339 speed in a self-aeration laboratory flotation cell, Miner Eng, 19 (2006) 201–203.
G.J. Jameson, S. Nam, M.M. Young, Physical factors affecting recovery rates in flotation, Min SciEng, 9 (1977) 103-118.
H.J. Schulze, Hydrodynamics of bubble-mineral particle collisions, Min Process Extractive Metall, 5 (1989) 43-76.
Z. Dai, D. Fornasiero, J. Ralston, Particle-bubble collision models-a review, Adv Colloid Interfac, 85 (2000) 231-256.
R.H. Yoon, The role of hydrodynamic and surface forces in bubble-particle interaction,Int J Miner Process, 58 (2000) 129-143.
R.T. Rodrigues, J. Rubio, new basis for measuring the size distribution of bubbles, Miner Eng, 16 (2003) 757-765.
S.S. Dukhin, R. Miller, G. Loglio, Physico-chemical hydrodynamics of rising bubble, Drops and Bubbles in Interfacial Research D. Mobius and R. Miller (Editors), Elsevier Science B.V. All rights reserved, 1998.
H.J. Schulze, Physico-Chemical Elementary Processes in Flotation-An Analysis from the Point of View of Colloid Science Including Processes Engineering Considerations, Dev. Int J Miner Process 4 (Fuerstenau, D.W., Advisory Ed.), Elsevier, Amsterdam, 1984.
P.T.L. Koh, M.P. Schwarz, CFD modelling of bubble-particle attachments in flotation cells, Miner Eng, 19 (2006) 619-626.
Z. Dai, D. Fornasiero, J. Ralston, Particle-bubble attachment in mineral flotation, Adv Colloid Interfac, 217 (1999) 70-76.