Preliminary Program

RHEOLOGY IN THE MINERAL INDUSTRY

February 16-21, 1997
Bahia Resort Hotel and Conference Center
998 West Mission Bay Drive
San Diego, CA 92109
Tel: 1-619-490-3328
Fax: 1-619-488-1387

Chairs:
Janusz S. Laskowski
Department of Mining and Mineral Process Engineering
The University of British Columbia

and

David V. Boger
Department of Chemical Engineering
The University of Melbourne


Engineering Foundation Conferences
345 East 47th Street, New York, N.Y. 10017
Phone: 1-212-705-8145 Fax: 1-212-705-7441
E-mail: engfnd@aol.com
World Wide Web: http://www.engfnd.org

Sunday, February 16, 1997

3:00 p.m. - 7:00 p.m. Registration

7:00 p.m. - 8:30 p.m. Dinner

8:45 p.m. - 9:15 p.m. Opening remarks
Janusz Laskowski, Conference Co-Chair
David Boger, Conference Co-Chair
Brij Moudgil, EF Liaison

9:30 p.m. - 11:00 p.m. Opening reception

Monday, February 17, 1997

7:00 a.m. - 8:15 a.m. Breakfast Buffet

8:15 a.m. - 12:00 noon RHEOLOGY OF MINERAL SUSPENSIONS AND RHEOLOGICAL MEASUREMENTS: PART I

Opening remarks
Session Chairs: D.V. Boger and J.S. Laskowski

M-1 "Rheology of Mineral Suspensions"
D.V. Boger
Advanced Mineral Products Research Centre
Department of Chemical Engineering
The University of Melbourne, Australia

M-2 "Measurement of Rheological Properties of Settling Suspensions"
B. Klein* and J.S. Laskowski**
*Process Research Associates, Ltd., Vancouver, Canada; and
**The University of British Columbia, Canada

Coffee Break

M-3 "The Influence of Surface Chemistry on the Rheology and Flow of Particulate Suspensions"
P.J. Scales, S.B. Johnson and P.C. Kapur*
Advanced Mineral Products Research Centre
The University of Melbourne, Australia
*Department of Materials and Metallurgical Engineering
Indian Institute of Technology, India

M-4 "Rheological Investigations of Non-DLVO Particle Interactions in Concentrated Mineral Slurries"
C.A. Prestidge
Ian Wark Research Institute
The University of South Australia

M-5 "Development of an On-Line Flow Rheometer for Mineral Slurries"
C. Devasagayam, D.J. Brown and O.D. Nguyen
Department of Chemical Engineering
University of Adelaide, Australia

12:00 noon - 1:30 p.m. Lunch

1:30 p.m. - 4:00 p.m. Ad hoc sessions/free time

5:00 p.m. - 6:00 p.m. Social Hour

6:00 p.m. - 7:30 p.m. Dinner

7:30 p.m. - 9:50 p.m. RHEOLOGY OF MINERAL SUSPENSIONS AND RHEOLOGICAL MEASUREMENTS: PART II
Session Chairs: D.V. Boger and J.S. Laskowski

M-6 "Yield Stress of Concentrated Mineral Suspensions from Static Equilibrium Measurements with Various Geometries"
P.H.T. Uhlherr, J.Z.Q. Zhou, J. Guo and T. Fang*
Department of Chemical Engineering
Monash University, Australia
*Department of Chemical Engineering
East China University of Science and Technology, China

M-7 "Yield Stress Measurement of Mineral Suspensions Using a Tin Can"
N. Pashias, D.V. Boger, K.J. Summers* and D.J. Clenister*
Advanced Mineral Products Research Center
Department of Chemical Engineering
The University of Melbourne, Australia
*Residue Development
Alcoa Corporation, Australia

M-8 "Rheology of Serpentinite Nickel Ore Slurries and Its Measurement with a Modified Rotary Viscometer"
H. Laapas, V. Kirjavainen, K. Neiskanen and M. Lyra*
Laboratory of Mechanical Process Technology and Recycling
University of Technology, Finland
* Outokumpu, Finland

M-9 "The Distinction of Homogeneous Suspension Flow from the Heterogeneous Mixture Flow by Measuring the Head Loss on a Horizontal Pipe"
I. Tarjan and F. Faitli
Department of Process Engineering
University of Miscole, Hungary

M-10 "Powder Material Rheology under Belt Transportation"
G. Bonifazi, P. Massacci and R. Virgili
Department of Chemical Engineering
Universita degli Stusdi di Roma, Italy

10:00 p.m. - 11:00 p.m. Social Hour

Tuesday, February 18, 1997

7:00 a.m. - 8:15 a.m. Breakfast Buffet

8:15 a.m - 12:00 noon EFFECTS OF PULP RHEOLOGY ON GRINDING AND CLASSIFICATION

Opening remarks
Session chairs: T. Napier-Munn and TBA

TA-1 "Rheological Effects in Grinding and Classification"
T.J. Napier-Munn, F.Shi and I.K Asomah
JKMRC, Brisbane, Australia

TA-2 "Use of Chemicals for Rheology Control in Wet Ultra-fine Grinding"
Y. Wang and E. Forssberg
Division of Mineral Processing
Lulea University of Technology, Sweden

Coffee Break

TA-3 "Rheology Aspects to Grinding Efficiency - Results by Using Laboratory Scale Continuous Classifying Mill"
V.V. Hintikka, R.P. Kalapudas and P. Viitanen*
Technical Research Centre of Finland at Outokumpu
VTT Chemical Technology, Mineral Processing
*Technical Research Centre of Finland at Espoo
VTT Process Technology

TA-4 "An Investigation of the Rheology of Slurries in High Speed Stirred Mills"
D. Rahal*, R.A. Bearman** and I. Micallei***
*JKMRC, Brisbane, Australia
**Centre for Mining Technology and Equipment, Brisbane, Australia
***3M Australia at St. Marys

12:00 noon - 1:30 p.m. Lunch

1:30 p.m. - 3:00 p.m. POSTER SESSION

P-1 "Measurement of Flow Behaviors of Newtonian and Non- Newtonian Fluids Using Falling Needle Rheometer"
Junji Shibata, Hideki Tamamoto and Takahiro Nishiyama
Department of Chemical Engineering
Kansai University, Japan

P-2 "The Role of Rheology in the Pipelining of Mineral Slurries"
P. Slatter
Cape Technikon, South Africa

P-3 "Rheological and Tensiometric Properties of H2O-P2O5 System in the Presence of Surfactants"
B. Kopyleva
Kew Gardens, NY

P-4 "Preliminary Experimental Investigation on the Transportation of Saudi Phosphate Rocks in Slurry Pipelines"
Tariq F. Al-Fariss
Department of Chemical Engineering
King Saud University, Saudi Arabia

3:00 p.m. - 5:00 p.m. Ad hoc sessions/free time

5:00 p.m. - 6:00 p.m. Social Hour

6:00 p.m. - 7:30 p.m. Dinner

7:30 p.m. - 9:30 p.m. ENVIRONMENTAL RHEOLOGY

Session chair: D.V. Boger

TP-1 "Microstructural and Rheological Characterization of Colloidal Aggregates of Nuclear Processing Slurries"
P.A. Smith, R. Shekarriz*, D.R. Rector and J.D. Hudson**
Pacific Northwest National Laboratory, USA

TP-2 "Environmentally Acceptable Inhibitive Drilling Fluids in the Oil Industry: Applicative and Rheological Considerations"
P. Macini and E. Mesini
Chemical, Mining and Environmental Engineering Department
University of Bologna, Italy

TP-3 "Compressional Rheology and Solid-Liquid Separation Processes"
L.R. White
Advanced Mineral Products Special Research Centre
Department of Mathematics
The University of Melbourne, Australia

9:30 p.m. - 10:30 p.m. Social Hour

Wednesday, February 19, 1997

7:00 a.m. - 8:15 a.m. Breakfast Buffet

8:15 a.m. - 12:00 noon EFFECT OF RHEOLOGY ON SEPARATION

8:15 a.m. - 8:30 a.m. Opening remarks

Session chairs: G. Ferrara and J.S. Laskowski

W-1 "Particle Movement in Non-Newtonian Fluids:
Part I. Rheological Properties of Magnetite
Suspensions"
Y.B. He and J.S. Laskowski
Department of Mining and Mineral Process Engineering
The University of British Columbia, Canada

W-2 "The Rheology of Ferrosilicon Dense Medium Suspensions"
T.J. Napier-Munn, M. Dunglison and F. Shi
JKMRC, Brisbane, Australia

Coffee Break

W-3 "Particle Movement in Non-Newtonian Fluids: Part II.
Dense Medium Separation"
Y.B. He and J.S. Laskowski
Department of Mining and Mineral Process Engineering
The University of British Columbia, Canada

W-4 "Static and Dynamic Stability in Dense Medium Separation Processes"
P. Bozzato, P. Bevilacque and G. Ferrara
DICAMP - Process Engineering Division
University of Trieste, Italy

W-5 "Viscosity of Flotation Froth"
E. Zaman and B. Moudgil
Engineering Research Center for Particle Size and Technology
University of Florida, USA

W-6 "The Influence of Rheology and Size Distribution of the Ground Ore Upon the Flotation Indices of the Pechenganicel Concentrator"
I.A. Blatov, L.V. Selenskay, V.N. Kostritsin
Pechenganickel Co., Russia
O.A. Kravtsova, G.V. Spirdonov, Al.L. Romanov
Gipronickel Institute, Russia
E.E. Andreev and O.N. Tikhonov
Saint Petersburg Mining Institute, Russia

12:00 noon - 1:30 p.m. Lunch

2:30 p.m. - 5:00 p.m. Ad hoc sessions/free time

6:00 p.m. - 7:30 p.m. Dinner

7:30 p.m. - 9:30 p.m. VISCOSITY MODIFIERS - DRAG REDUCTION AND FLOCCULATION

Opening Remarks
Session chairs: R.R. Horsley and R.L. Jones

WP-1 "Viscosity Modifiers in the Mining Industry"
R.L. Jones and R.R. Horsley
Division of Engineering and Science
Curtin University of Technology, Australia

WP-2 "Rheological Study on a Gold and Silver Leach Pulp"
B. Klein
Process Research Associates, Ltd., Vancouver, Canada

WP-3 "Kinetics of Gelation in Cement Slurries: Rheological Approach"
G. Galloni, P. D'Antona, M.Vanelli and N. Moroni*
*Agip S.p.A., Milan, Italy

WP-4 "Optical Monitoring of Flocculation in Concentrated Suspensions"
J. Gregory*, R.R. Horsley**, and R.L. Jones**
*Department of Civil and Environmental Engineering
University College, London, UK
**School of Applied Chemistry
Curtin University, Perth, Australia

9:30 p.m. - 10:30 p.m. Social Hour

Thursday, February 20, 1997

7:00 a.m. - 8:15 a.m. Breakfast Buffet

8:15 a.m. - 12:00 noon RHEOLOGY OF COAL-WATER SLURRIES

8:15 a.m. - 8:30 a.m. Opening remarks

Session chairs: H. Usui and O.D. Nguyen

TH-1 "Outlook of Development of Clean Coal Technology in Japan"
Sadayuki Shinozaki
Center for Coal Utilization, Japan

TH-2 "Rheological Properties of South Australian Coal-Water Slurries"
T. Semmler, C. Logos and O.D. Nguyen
Department of Chemical Engineering
University of Adelaide, Australia

Coffee Break

TH-3 "Dewatering of HD Coal Slurry by Mechanical Expression"
J. Guo, S. Hodges* and P.H.T. Uhlherr
Department of Chemical Engineering
Monash University, Australia

TH-4 "Rheology of Low Rank Coal Slurries Prepared by Upgrading Process"
Hiromoto Usui, Takfumi Tachikawa, Takashi Saeki and Kohtaro Katagiri*
Department of Applied Chemistry and Chemical Engineering
Yamaguchi University, Japan
*Machinery and Engineering Division
Ube Industries, Ube, Japan

TH-5 "Surface Chemistry and Rheology of Pittsburgh No. 8 Coal- Water Slurry in the Presence of a New Pyrite Depressant"
F.J. Sotillo*, D.W. Fuerstenau and G.H. Harris
Department of Materials Science and Mineral Engineering
University of California at Berkeley, USA
*currently with PerUsa EnviroMet Inc., Lakeland, Florida, USA

12:00 noon - 1:30 p.m. Lunch

1:30 p.m. - 3:00 p.m. RHEOLOGY OF COAL-WATER SLURRIES (continued)

TH-6 "The Effects of Agitation on the Rheology of a Coal Water Mixture"
Shoichi Takao and Hironori Ozaki
Akashi Technical Institute
Kawasaki Heavy Industry Ltd., Hyogo, Japan

TH-7 "Sedimentation Stability and Rheology of Coal Water Mixtures"
Kenichiro Hayashi*, Toshio Tamura*, Shuichi Toriya*, Hiromoto Usui** and Takashi Saeki**
*Kawasaki Research Laboratory
Nippon Shokubai Ltd., Kawasaki, Japan
**Yamaguchi University, Japan

3:00 p.m. - 5:00 p.m. POSTER PRESENTATION

P-5 "Effect of Humic Acids and Coal Rank on Rheology of Coal- Water Fuels"
M. Pawlik, H. Liu and J.S. Laskowski
Department of Mining and Mineral Process Engineering
The University of British Columbia, Canada

P-6 "The Evaluation of Minerals Composition in Coal for the Production of Super-Clean Coal"
Susumu Osaka
Center for Clean Coal Utilization, Japan

P-7 "Rheological Characteristics of Coal Water Slurries in Pipelines"
O.P. Rao
Council of Scientific and Industrial Research
New Delhi, India

P-8 "Effect of Dispersant on Rheology of Lignite-Water Slurries"
Reha Yavuz and Sadriye Kucukbayrak
Department of Chemical Engineering
Istanbul Technical University, Turkey

5:00 p.m. - 7:30 p.m. Ad hoc sessions/free time

7:30 p.m. - 9:30 p.m. Banquet

9:30 p.m. - 10:30 p.m. Social Hour

Friday, February 21, 1997

7:00 a.m. - 8:15 a.m. Breakfast Buffet

8:15 a.m. - 12:00 noon RHEOLOGY OF DRILLING AND PIPELINING

Opening Remarks
Session Chairs: D. Wildman and K. Wilson

F-1 "Effect of Fluid Rheology on Hole Cleaning in Highly-Deviated Wells
P.S. Vinod* and L.V. McIntire**
*Dowell Schlumberger, Inc.
**Department of Chemical Engineering
Rice University, USA

F-2 "Transitional and Turbulent Flows of Bingham Plastics"
K. Wilson
Queen's University
Kingston, Canada

Coffee Break

F-3 "Effects of Non-Newtonian Mineral Suspensions on the Performance of Centrifugal Pumps"
A. Sellgren and G. Addie
Division of Water Resources Engineering
Lulea University of Technology, Sweden

F-4 "Dynamic Barite Sag in Oil Based Drilling Fluids"
R.P. Jachnik* and G. Robinson**
*Bridge of Don, Scotland
**Houston, Texas, USA

F-5 "Developments in the Transportation of Drill Cutting in Horizontal Drilling"
Sze-Foo Chien
FURCULA Company, USA

F-6 "New Disclosures in Predicting Stand Pipe Pressures While Drilling"
A. diMolfetta, R. Romagnoli and R. Maglione*
Dpt. Georisorse, Politecnico di Torino, Italy

12:00 noon - 1:00 p.m. Lunch and adjournment
(Boxed lunches will be available for those who request them by Thursday afternoon)

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