PRELIMINARY PROGRAM

BENEFICIATION OF PHOSPHATES II

December 6 - 11, 1998
Harborside Inn
300 Clubhouse Drive
Palm Coast, Florida 32137
1-904-445-3000 - Fax: 1-904-445-9685

Conference Chair:

Patrick Zhang
Florida Institute of Phosphate Research

Conference Co-Chairs:

Ronald Wiegel
University of Minnesota

Hassan El-Shall
University of Florida

Engineering Foundation Conferences
Three Park Avenue, 27th Floor
New York, N.Y. 10016
T: 1-212-591-7836; F: 1-212-591-7441

E-mail: engfnd@aol.com; WWW: www.engfnd.org

Sunday, December 6, 1998

4:00 p.m. - 6:00 p.m. Registration

6:00 p.m. - 8:00 p.m. Dinner and Welcome

8:00 p.m. - 9:00 p.m. Welcome Reception

Monday, December 7, 1998

7:00 a.m. - 8:30 a.m. Breakfast

FUNDAMENTALS I
Session Chair: TBA

8:30 a.m. - 9:15 a.m. KEYNOTE: Improved Phosphate Flotation with Nonionic Polymers
Y. Lu, N.Liu, X. Wang and Jan Miller
Department of Metallurgical Engineering
University of Utah, Utah, USA

9:15 a.m. - 9:45 a.m. Developments of Phosphate Flotation Reagents in China
Shouci Lu
University of Science and Technology, Beijing, China
Keji Sun
Lianyungang Design and Research Institute, Jiangsu, China

9:45 a.m. - 10:15 a.m. Recovery of Phosphate Minerals from Silicate and Carbonate Ores Using Selective Flocculation
S. Beeson and C. Poole
Department of Mining and Mineral Engineering
University of Leeds, United Kingdom

10:15 a.m. - 10:45 a.m. Coffee Break

10:45 a.m. - 11:15 a.m. The Fundamentals and Practical Implications of the Role of Polymers in Separating Silica from Phosphate
Patrick Zhang, Y. Yu, H. Hanson, R. Snow and
M. Bogan
Florida Institute of Phosphate Research, Florida, USA

11:15 a.m. - 11:45 a.m. The Influence of Some Modifier Agents on the Separation Apatite / Silicate by Froth Flotation
Laurindo de Salles Leal Filho
Mining Engineering Department
University of Sao Paulo, Sao Paulo, Brazil

12:00 p.m. - 2:00 p.m. Lunch

2:00 p.m. - 5:30 p.m. Ad hoc Sessions/ Free Time

5:30 p.m. - 7:00 p.m. Dinner

. FUNDAMENTALS II
Session Chair: TBA

7:15 p.m. - 8:00 p.m. KEYNOTE: A Review of Amine Chemicals Used in the Flotation of Silica
Richard Klimpel
RK Associates LLC, Michigan, USA

8:00 p.m. - 8:25 p.m. A Parametric Study of Column Flotation of Florida Phosphates
Hassan El-Shall, Y. Chen, N.Abdel-Khalek,
S. Svoronos, and S. Gupta
ERC for PS&T
University of Florida, Florida, USA

8:25 p.m - 8:50 p.m. Optimal Conditions for Flotation of Phosphate- containing Minerals from Ores
Alexander Abramov, A. Kalugin, and D. Kozlov
Moscow State Mining University, Russia

8:50 p.m. - 9:15 p.m. Column Flotation of Dorowa Rock Phosphate Slimes for the Manufacture of Low Cost Phosphate Blend Fertilizer
T. Mahlangu, T. Fernandes, R. Varbanov, and D. Simbi
Deparment of Metallurgical Engineering
University of Zimbabwe

9:15 p.m. - 9:40 p.m. Flotation Kinetics of Apatite from Magnetite
K. Hanumantha Rao, F. Su and K. Forssberg
Division of Mineral Processing
Lulea University of Technology, Sweden

9:40 p.m. - 10:00 p.m. Industrial Practice and Fundamentals of Barite Flotation from a Phosphate Ore
Rogerio C. Guimaraes and Antonio E.C. Perez
UFMG, Brazil

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

Tuesday, December 8, 1998

7:00 a.m. - 8:30 a.m. Breakfast

PROCESSING OF CARBONACEOUS PHOSPHATES
Session Chair: TBA

8:30 a.m. - 9:15 a.m. KEYNOTE: TBA
P. Somasundaran
Henry Krumb School
Columbia University, New York, USA

9:15 a.m. - 9:45 a.m. Triboelectric Beneficiation Potential of Apatite from calcite and Quartz Minerals
H. Manouchehri, K. Hanumantha Rao, and K. Forssberg
Division of Mineral Processing
Lulea University of Technology, Sweden

9:45 a.m. - 10:15 a.m. Beneficiation of Highly Magnesian Phosphorites
M.A. Komarov, Yu Kiperman, F.Sandt, and K. Kavun
All-Russia Research Institute of Economics of Minerals Resources and Use of the Subsurface, Moscow, Russia

10:15 a.m. - 10:45 a.m. Coffee Break

10:45 a.m. - 11:15 a.m. Beneficiation of Florida Dolomitic Phosphate Pebble with Fine Particle Flotation Process
Zhengxing Gu and S. Zheng
Lianyungang Design and Research Institute
Lianyungang, China

11:15 a.m. - 11:45 a.m. Phosphoric Esters as Carbonate Collectors in the Flotation of Sedimentary Phosphate Ores
G. Baudet and M. Save
Bureau de Recherches Geologiques et Minieres, France

11:45 a.m. - 12:15 p.m. Flotation Separation of Phosphate and Dolomite Using a New Amphoteric Collector
X. Shao, C.L. Jiang, and B.K. Parekh
Center for Applied Energy Research, University of Kentucky, Lexington, USA

12:15 p.m. - 2:00 p.m. Lunch

2:00 p.m. - 5:00 p.m. Ad hoc Sessions / Free Time

5:30 p.m. - 7:00 p.m. Dinner

HYDROMETALLURGICAL PROCESSING
Session Chair: TBA

7:00 p.m. - 7:45 p.m. KEYNOTE: TBA
Mike Lloyd
Florida Institute of Phosphate Research, Florida, USA

7:45 p.m. - 8:15 p.m. Industrialization of Phosphate Bioprocessing
Robert Rogers, M. Mcilwain, J.Wolfram, and L. Nelson
Biotechnology Department
INEEL, Idaho, USA

8:15 p.m. - 8:45 p.m. Preparation of High Purity Phosphoric Acid from Florida Phosphate Matrix
Hassan El-Shall
ERC for PS&T
University of Florida Institute of Phosphate Research Gainesville, Florida, USA

8:45 p.m. - 9:15 p.m. Filtration Efficiency and Size Distribution of Phosphogypsum: Effect of Organic and Inorganic Additives
Hassan El-Shall, B. Moudgil, and E. Abdel Aal
ERC for PS&T
University of Florida Institute of Phosphate Research Gainesville, Florida, USA

9:15 p.m. - 9:45 p.m. Microbial Beneficiation of Phosphatic Ores from Hirapur, India
A.D. Agate
Agharkar Research Institute, India

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

Wednesday, December 9, 1998

7:00 a.m. - 8:30 a.m. Breakfast

ANALYSIS AND CONTROL
Session Chair: TBA

8:30 a.m. - 9:15 a.m. On-Stream X-Ray Diffraction Analysis of Phosphate Rock-Bearing Slurries in Florida. A Case Study Towards Process Control
Johann Engelbrecht, P. van den Heever, and
S. de Bruyn
Mintek, South Africa

9:15 a.m. - 10:00 a.m. A Real Time Framework at the Industrial Desktop
Osvaldo Bascur
OSI Software, Inc. , Texas, USA

10:00 a.m. - 10:30 a.m. Coffee Break

10:30 a.m - 11:15 a.m. Preliminary Characterization of Organic Coatings on Grains in Phosphate Ores
Guerry McClellan
University of Florida, Florida, USA
Bruno Despujol, Domaine de Nicolas, France

11:15 a.m - 12:00 noon TBA

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

1:30 p.m.- 5:30 p.m. Ad hoc Sessions / Free Time

5:30 p.m. - 7:00 p.m. Dinner

PLANT PRACTICE
Session Chair: TBA

7:15 p.m. - 7:45 p.m. KEYNOTE: Phosphate Rock Beneficiation Practice in the U.S.
Ron Wiegel
Coleraine Minerals Research Laboratory
University of Minnesota, Minnesota, USA

7:45 p.m - 8:15 p.m. Beneficiation of Eshidiya A3 Phosphate Ore; Correlation Between Lab and Industrial Results
Mon'd Baderkhan, A. Ghosheh, D. Amara and
Y. Abu-Rish
Jordan Phosphate Mines Co., LTD, Jordan

8:15 p.m. - 8:45 p.m. Plant Practice of Phosphate Beneficiation in China
Z. Gu and Z. Gao
Lianyungang Design and Research Institute, China

8:45 p.m. - 9:15 p.m. Anionic Conditioning for Phosphate Flotation
Glenn Gruber
Jacobs Engineering, Florida, USA

9:15 p.m. - 9:45 p.m. Drying Behavior of some Sedimentary Phosphate Ores Related to their Mineralogical and Textural Properties
Abdellah CHIK and D. Msatef
Centre D'etudes et de Recherches des Phosphates Mineraux, Morocco

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

Thursday, December 10, 1998

7:00 a.m. - 8:30 a.m. Breakfast

NOVEL PROCESSING TECHNIQUES
Session Chair: TBA

8:45 a.m. - 9:15 a.m. Plant-site Evaluation of Air-sparged Hydrocyclone Technology for Phosphate Flotation Separation
Jan Miller, Y. Lu, N. Liu, X. Wang, and D. Yin
Department of Metallurgical Engineering, University of Utah, USA

9:15 a.m. - 9:45 a.m. Horizontally Baffled Flotation Column
S.K. Kawatra and T.C. Eisele
Department of Metallurgical and Materials Engineering
Michigan Technology University, Michigan, USA

9:45 a.m. - 10:15 a.m. Testing of the Hydrofloat Cell for Recovery of Coarse Phosphate
Michael Mankosa
Eriez Magnetics, Pennsylvania, USA
J. Kohmuench and G. Luttrell
Department of Mining and Minerals
Virginia Tech., Virginia, USA

10:15 a.m. - 10:45 a.m. Coffee Break
10:45 a.m. - 11:15 a.m. The Conversion of Calciner Rejects into Reclaimed Phosphate & Lime Concentrates
R. Schlezinger and M. Baker
Mineral Processing R&D
Rotem Amfert Negev Ltd., Israel

11:15 a.m. - 11:45 a.m. TBA

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

2:00 p.m. - 6:00 p.m. Ad hoc Sessions / Free Time

6:00 p.m. - 8:00 p.m. Banquet

8:00 p.m. - 9:00 p.m. Social Hour

Friday, December 11, 1998

7:00 a.m. - 8:30 a.m. Breakfast

ENVIRONMENTAL
Session Chair: TBA

8:45 a.m. - 9:30 a.m. Environmental Fate of Flotation Reagents Used in the Phosphate Industry in Florida
Shailesh Patel and Rick Powers
BCI Engineers and Scientists, Florida, USA;
Patrick Zhang
Florida Institute of Phosphate Research, Florida, USA

9:30 a.m. - 10:15 a.m. The Assessment of the Radioactive Pollution's Potential Given by the Phosphogypsum Waste Dump from the Company Sofert LTD. Bacau-Romania and the Possibilities Concerning the RA-226 Removal from This
V.T. Vacariu, P.D. Georgescu and N. Tomus
Research & Design Institute for Rare and Radioactive Metals, Bucharest, Romania

10:15 a.m. - 10:45 a.m. Coffee Break

10:45 a.m. - 11:30 a.m. Establishing Standard Operating procedures and Method Detection Limits for Flotation Reagents Used in the Phosphate Industry in Florida
Shailesh Patel
BCI Engineers and Scientists, Florida, USA;
Saaban Ben-Poorat
ATAS, Inc., Missouri, USA

11:30 a.m - 12:15 p.m. Heavy Metal Distribution in Phosphogypsum Stacks
Bernie Scheiner
BCD Technologies, Alabama, USA

12:30 p.m. Lunch and Adjournment

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