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MEI Online: MEI Conferences: Flotation 07: Technical Programme

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Symposium on Flotation Fundamentals: Physics and Chemistry, November 6-7


Tuesday November 6th


Technical Session 1 General

On the optimization of hydrodynamics in fine particle flotation
H. Schubert (TU Bergakademie Freiberg, Germany)

New concepts in coarse and ultrafines flotation
G.J Jameson (University of Newcastle, Australia)

Novel technology to increase fine mineral recovery
M. Churchill (Dorr-Oliver Eimco, South Africa) and B. Lumsden (Ausmetec, Australia)

Advances in flotation technology - the way to make the sorting process flexible for the future application
W. Jaspers, O. Handy and L. Markworth (Humboldt Wedag, Germany)

An investigation into the use of electro-flotation in the industrial treatment of fine mineral particles
N. Barbian, J.J. Cilliers (Imperial College, UK), G. Montes-Atenas and P. Grassia (University of Manchester, UK)

Characterizing the floatability of sulphide minerals using induction time measurements and micro-flotation
A. Min, M.E. Holuszko (JKMRC, Australia), J.-P. Franzidis (University of Cape Town, South Africa) and J.S. Laskowski (University of British Columbia, Canada)


Technical Session 2 Gas Dispersion: Pulp and Froth Effects

Rheological effects on gas dispersion
D.A., N.Z.P Shabalala and M.C. Harris (University of Cape Town, South Africa)

The critical and interactive roles of frother and particles in maximising froth phase performance
M. Zanin, M. Coppola, L. Randriamanjatosoa, S.R. Grano (Ian Wark Research Institute, Australia), E. Wightman and J-P Franzidis (JKMRC, Australia

Froth RTD measurement in large flotation cells
J. Yianatos, L. Bergh, K. Tello (Santa Maria University, Chile), F. Díaz (Chilean Commission of Nuclear Energy, Chile) and A. Villanueva (Codelco, Chile)

Modelling attachment rates of multi-sized particles and bubbles in a flotation cell
P.T.L. Koh and M.P. Schwarz (CSIRO Minerals, Australia)

Quantifying the effect of entrainment in mineral flotation using a mechanistic model
M.M. Valenta (Metallicon Process Consulting, South Africa)and M.C. Harris (University of Cape Town, South Africa)

Electroflotation recovery efficiency of silica in a Hallimond Tube
M.S.K.A. Sarkar, G.M. Evans (University of Newcastle, Australia) and A.V. Nguyen (University of Queensland, Australia)

Predicting bubble size distributions from image analysis
Yingjie Wang and S. Neethling (Imperial College London, UK)

Coarsening foam – numerical modeling and experimental results
H. Do, M. Brady, P.P. Vlachos, D.P. Telionis and R.-H. Yoon (Virginia Polytechnic Institute & State University, USA)

Predicting the air recovery from flotation cells
S. Neethling and J. Cilliers (Imperial College London UK)

Investigation of the effect of energy on flotation kinetics using a novel oscillating grid flotation cell
D.A. Deglon, C. Changunda and M.C. Harris (University of Cape Town, South Africa)

Behaviour of particles during coalescence of bubbles
S. Ata and G.J. Jameson (University of Newcastle, Australia)

Influence of turbulence intensity on the motion of particle-laden bubbles in flotation cells
E. Doroodchi and G.M. Evans (University of Newcastle, Australia)

Tomography imaging of gas holdup distribution in a flotation cell
J. Kourunen, L. Heikkinen (University of Kuopio, Finland), A. Rinne and K. Saloheimo (Outotec, Finland)

Impact of frother on bubble production and behaviour in the pulp zone
C. Acuña (Universidad Católica del Norte, Chile), J.E. Nesset and J.A. Finch (McGill University, Canada)


Wednesday November 7th


Technical Session 3 Surface Analysis Techniques

Thiolate layers on metal sulfides characterised by XPS, ToF-SIMS and NEXAFS spectroscopy
S.W. Goh, A.N. Buckley, B. Gong (University of New South Wales, Australia), R. Woods (Griffith University, Australia), R.N. Lamb (Australian Synchroton, Australia), L.-J. Fan and Y.-Wen Yang (National Synchroton Research Centre, Taiwan)

An in-situ ATR-FTIR investigation of adsorption and orientation of heptyl xanthate at the lead sulphide/aqueous solution interface
A. Fredriksson and A. Holmgren (Lulea University of Technology, Sweden)

In situ particle film ATR-FTIR studies of CMC adsorption on talc: the effect of ionic strength and multivalent metal ions
L.T. Cuba-Chiem, L. Huynh, J. Ralston, and D.A. Beattie (Ian Wark Research Institute, Australia)

The effect of bulk heterogeneities on the Cu activation of sphalerite
S.L. Harmer, A. Mierczynska-Vasilev, W.M. Skinner, D. Beattie (Ian Wark Research Institute, Australia) and A.N. Buckley (University of New South Wales, Australia)

AFM studies on the effect of cations on CMC adsorption on talc
N. Schreithofer (Helsinki University of Technology, Finland) and L. Parolis (University of Cape Town, South Africa)

A TOF – SIMS investigation of the effect of calcium ions on the adsorption of CMC onto the basal planes of New York talc
E. Burdukova, D.J. Bradshaw (University of Cape Town, South Africa), G.C. Van Leerdam, F.E. Prins, R.G. Smeink (Akzo Nobel Industrial Chemicals, The Netherlands) and J.S. Laskowski (University of British Columbia, Canada)


Technical Session 4 Flotation Chemistry- General

Mechanisms of trithiocarbonate adsorption
J.A.Venter and M.K.G. Vermaak (University of Pretoria, South Africa)

Hydrophobic-hydrophilic effects on sphalerite
M.E. Holuszko, J.P. Franzidis, E.V. Manlapig (JKMRC, Australia), M.A. Hampton, B.C. Donose and A.V. Nguyen (University of Queensland, Australia)

Quantitative structure-activity relationship (QSAR) approach for the selection of chelating mineral collectors
R. Natarajan and I. Nirdosh (Lakehead University, Canada)

Effect of flotation reagents in zinc recovery from tailings
A.H. Navidi-Kashani and F. Rashchi (University of Tehran, Iran)

Flotation of oxidised copper sulphide minerals
D. Fornasiero and A. Henderson (Ian Wark Research Institute, Australia)

Development of new frothers through hydrodynamic characterization of frother chemistry
F. Cappuccitti (Flottec, USA) and J.A. Finch (McGill University, Canada)



Symposium on Flotation Applications and Plant Practice November 8-9


Thursday November 8th


Technical Session 1 General

On lifetime costs of flotation operations
H. Oravainen, H. Allenius, A. Rinne and A. Peltola (Outotec, Finland)

High chrome grinding media plant trial in a copper regrind mill
J. Kinal (Magotteaux Australia Pty Ltd, Australia)

The significance of grinding environment on the flotation of UG2 ores
C.J. Greet (Magotteaux Australia Pty Ltd, Australia)

Industrial demonstration of mainstream inert grinding and flotation at Anglo Platinum PPL Concentrator
D. Curry. C. Walstra (Xstrata Technology, South Africa), H. De Waal (Potgieterrust Platinum Ltd, South Africa), C. Rule (Anglo Platinum Ltd, South Africa), M. Young and J. Pease (Xstrata Technology, Australia)

The differential separation of copper sulphides by flotation
G.W. Heyes (Consultant, Australia)

The role of synthetic minerals in determining the relative flotation behaviour of Platreef PGE tellurides and arsenides
S. Shamaila (Anglo Research-Crown Mines, South Africa) and C.T. O’Connor (University of Cape Town, South Africa)

Improving the recovery of molybdenite in the Kennecott Utah Copper bulk flotation circuit
B. Triffett (Kennecott Copper, USA), B.J.I. Adair (JKMRC, Australia) and C. Veloo (Rio Tinto, Australia)

Sulfonate reagents for processing industrial minerals
Guoxin Wang, F.J. Sotillo, S.H. Sutherland and J.R. Walker (ArrMaz Custom Chemicals, USA)


Technical Session 2 Equipment, Instrumentation, Measurement & Control

Froth recovery of industrial flotation cells
J.B. Yianatos, F. Contreras (Santa Maria University, Chile), M.H. Moys (Witwatersrand University, South Africa) and A. Villanueva (Codelco-Chile, Chile)

Bias estimation using conductivity measurements
M. Maldonado, A. Desbiens and R. Del Villar (Laval University, Canada)

An update on the estimation of the froth depth using conductivity measurements
M. Maldonado, A. Desbiens and R. Del Villar (Laval University, Canada)

Sampling large scale platinum flotation circuits
R.G. Coleman, D.J. Alexander (JKTech Pty Ltd, Australia) and A. Anyimadu (Anglo Platinum, South Africa)

The Dual Outlet Device – key to size selective flotation
G.A. Wierink, K. Heiskanen (Helsinki University of Technology, Finland), T. Niitti and J. Turunen (Outotec, Finland)

On-line froth acoustic emission measurements in industrial sites
C. Vanegas and P. Holtham (JKMRC, Australia)

Mass-pull control strategy in a copper rougher flotation bank
A.K. Supomo, X. Zheng, J.B. Mosher, G.A. Banini (PT Freeport Indonesia, Indonesia) and M. Habner (Cytec Ltd, Australia)

Positron Emission Particle Tracking as a method to map the movement of particles in the pulp and froth phases
K.E. Waters, J.J. Cilliers (Imperial College London, UK), N.A. Rowson, X. Fan and D.J. Parker (University of Birmingham, UK)


Friday November 9th


Technical Session 3 Design, Operation, Optimisation and Simulation

Copper nickel separation at Clarabelle Mill
V. Lawson (INCO, Canada)

Residual amine in iron ore flotation
G.M.B. Batisteli (Samarco Mineracao SA, Brazil) and A.E.C. Peres (UFMG, Brazil)

Mass balance and mineral liberation analysis of flotation plant survey samples to improve plant metallurgy
Z. Dai, A. Lee and P. Wells (CVRD Inco Technical Services Ltd, Canada)

Air rate profile optimisation: from simulation to bank improvement
C. Smith, S. Neethling and J.J. Cilliers (Imperial College London, UK)

Progress in understanding flotation performance in operating plant via bench scale simulation
M.P. Hay (Eurus Mineral Consultants, South Africa)

Unsteady flow and turbulence in a flotation cell
Y. Yang, M. Brady, P.P Vlachos, D.P. Telionis, R.-H. Yoon (Virginia Polytechnic Institute & State University, USA) and A. Weber (Dorr-Oliver Eimco, USA)

Optimum distribution of flotation circuit capacity based on ore and machine characteristics – a plant case study
X. Zheng, A. Nugraha, G.A. Banini, J.B. Mosher and A. Zarantonello (PT Freeport Indonesia, Indonesia)

Evaluation of the largest flotation cells at Minera Los Pelambres
J.B. Yianatos, F. Henríquez (Santa Maria University, Chile) and L. Tapia (Compania Minera Pelambres, Chile)

Optimising down the bank flotation froth performance in Metso’s 3m3 test cell
K.C. Runge (Metso Minerals Process Technology, Australia) and B. Seaman (BHP Nickel West Technology Group, Australia)

Establishing the relationship between grind size and flotation recovery using modelling techniques
K.C. Runge, J. McMaster (Metso Minerals Process Technology, Australia) and M. Ijsselstijn (Rio Tinto Northparkes Mining Operation, Australia)

The effect of high cleaner feed density due to upstream thickening on cleaner circuit performance
E. Nel, M. Valenta (Metallicon Process Consulting, South Africa), V.E. Coetzee (Impala Platinum Ltd, South Africa) and N. Kumalingac (Marula Platinum Ltd, South Africa)

A discussion of the occurrence and undesirable flotation behaviour of orthopyroxene and talc in the processing of mafic deposits
N.O. Lotter (Xstrata Process Support Group, Canada), D.J. Bradshaw, L.J. Kormos, M. Becker and L.A.S. Parolis (University of Cape Town, South Africa)

Benchmark gas dispersion measurements in mechanical flotation cells recovering bitumen from oil-sand ores
M.A. Vera (Shell Canada Energy, Canada) and C.O. Gomez (COG Technologies Inc., Canada)

Recent advances in placing automated analytical laboratories in processing plants to provide rapid data for process control purposes
P. Hofmeyr (Innovative Met Products, South Africa)

The impact of automated mineralogy on the analysis of flotation plants
P. Gottlieb and A. Butcher (Intellection Pty Ltd, Australia)




The effect of air flowrate on the flotation of fine mineral particles
N. Barbian, J.J. Cilliers (Imperial College London, UK), T. Nelson and P. Grassia (University of Manchester, UK)

The induction time on galena and sphalerite particles with different hydrophobicity characteristics
M.E. Holuszko, A. Min, J.P. Franzidis and E.V. Manlapig (JKMRC, Australia)

Flotability of apatites and gangue minerals of an igneous phosphate ore
L.A.F. Barros (SPI do Brasil, Brazil), E.E. Ferreira (CVRD, Brazil) and A.E.C. Peres (UFMG, Brazil)

The flotation of fine particles using charged microbubbles
K. Waters, K. Hadler and J.J. Cilliers (Imperial College London, UK)

The influence of high intensity conditioning on fine kaolinite flotation
Sun Wei, Deng Mei-jiao, Yi luan and Hu Yuehua (Central South University, China)

Adsorption mechanisms of Cr (VI) on the modified bauxite tailings
Wang Yuhua, Lan Ye and Hu Yuehua (Central South University, China)

Effect of N-substituent groupings on performance of thionocarbamates as selective collectors for copper sulfide minerals: density functional calculation
Guangyi Liu, Hong Zhong and Tagen Dai (Central South University, China)

Research on the relationship of three amine collectors’ structure and their flotation performances on three aluminosilicates
Cao Xuefeng, Liu Changmiao, and Hu Yuehua (Central South University, China)

Effect of cationic groupings on performance of 12-carbon chain collectors in flotation separation of diaspore from kaolinite, pyrophyllite and illite
Hong Zhong et al (Central South University, China)

The effect of collector dosage, particle size and impeller speed on the performance of Jordanian phosphate flotation: lab scale study
S. Al-Thyabat, K. Tarawneh (Al-Hussein Bin Talal University, Jordan) and I. Rawashdeh et al (Jordan Phosphate Mines, Jordan)

Effects of surface heterogeneities on coal flotation
D. Fornasiero, K. Quast, L. Ding and J. Ralston (Ian Wark Research Institute, Australia)

Carrier-microencapsulation using Si-catechol complex for suppressing pyrite floatability
R.K.T. Jha, J. Satur, N. Hiroyoshi, M. Ito, and M. Tsunekawa (Hokkaido University, Japan)

Comparing the recovery of zinc from low grade tailing through flotation by oxine and dithizone
A. Khodadadi, S.M. Koleini (Tarbiat Modares University, Iran) and A. Hajati Iran Science and Technology University, Iran)



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