www.gruvochmetallutvinning.se prep – primary resource efficiency by enhanced prediction pertti...
Post on 31-Dec-2015
233 Views
Preview:
TRANSCRIPT
www.gruvochmetallutvinning.sewww.siostrim.se
PREP – Primary resource efficiency by enhanced prediction
Pertti Lamberg
Professor in GeometallurgyLuleå University of Technology
Geometallurgy group (2010-)
Pertti Lamberg Professor in Geometallurgy
Jan Rosenkranz Professor in Mineral Processing
Christina WanhainenAssociate professor in Economic Geology
Cecilia Lund Post Doc Researcher Maria Sinche Gonzales Post Doc (visitor)
Abdul Mwanga Friederike Minz Mehdi Parian
Viktor Lishchuk Pierre-Henri Koch
Professors and post docs
PhD students
2Partners: LTU, LKAB, Boliden, Lundin Mining, Outotec, Chalmers
Lowering head grades
1840 1855 1870 1885 1900 1915 1930 1945 1960 1975 1990 20050
5
10
15
20
25
30
35
40
0
325
650
975
1,300
1,625
1,950
2,275
2,600
Copper (%Cu)
Gold (g/t)
Lead (%Pb)
Zinc (%Zn)
Uranium (kg/t U3O8)
Nickel (%Ni)
Diamonds (carats/t)
Silver (g/t)
Ore
Gra
des
(C
u,
Pb
, Z
n,
Au
, N
i, U
, D
iam
on
ds)
Ore
Gra
de
(Ag
)
(kg/t U3O8)
(Ag, 1884 - 3,506 g/t)
General Trend
Norbotten Fe ores
Lund 2013
Collahuasi - Throughput
Alruitz et al 2009
Geometallurgy project
Production years
Cum
ulat
ive
resu
lt. M
€
PREP Project• Aim
– Develop an integrated modeling and simulation environment for conducting comprehensive model-based prognosis for the beneficiation of primary mineral resources
• Characterisation methods• Characterisation and test procedures• Development of unit operation models• Development of integrated software platform
Hyperspectral scanning
Mineral (assemblage) ColourChlorite (Mg or other) dark greenChlorite-water/quartz light greenFlat response greySericite light blueSericite-chlorite light purpleChlorite-sericite dark blueAmphibole-(sericite) purpleCarbonate orangeGypsum light yellowHematite brownQuartz redQuartz-phyllosilicate pinkQuartz carbonate light orangeQuartz-phyllosilicate-carbonate medium orangePhyllosilicate orchidAlbite mint greenAnorthite cyanPotassic feldspar sea greenMagnetite-apatite maroonQuartz-unknown light greyClinopyroxene navy blue
Mineral liberation measurement at LTU
Merlin HR-SEM
BSE imageParticles de-agglomerated
Removal of particles
touching edgesSegmentation
MeasurementsX-rayBSE
Geometallurgical test: Davis Tube test
• Also called Dings tube• Small ore sample in defined particle
size is treated in hydroseparator with magnetic field -> Conc and Tail
0
20
40
60
80
100
0 10 20 30 40 50 60
Co
nc
Fe
Re
c%
Feed Fe%
20
40
60
80
100
10 20 30 40 50 60 70 80 90 100
Co
nc
Fe
Re
c%
Fe carried by Mgt and Po %
20
40
60
80
100
Lamberg 2012
Particle tracking
• Mass balancing technique + modeling & simulation framework• Lamberg & Vianna 2007
Sphalerite-Pyrite (50%:50%); 50-63 um; tph
1. Deposit modeling
2. Modeling of crushing and grinding processes:
3. Modeling of concentration processes
4. Setup of simulation environment
5. Case studies
Publications• Lishchuk, V., Koch, P-H., Lund, C. and Lamberg, P.,
2015. Geometallurgical framework. Malmberget and Miheevskoye case studies. XVth Conference of PhD students and Young Scientists, Szlarska Poreba (Poland), 20-22 May, 2015
• Lishchuk V., Lamberg P., Lund C., 2014. Classification of geometallurgical programs based on approach and purpose. 13th SGA Biennial Meeting, Nancy, France, 24-27 August 2017.
• Koch, P-H., Lamberg, P., and Rosenkranz, J., 2015. How to build a process model in a geometallurgical program? 13th SGA Biennial Meeting, Nancy, France, 24-27 August 2017.
• Lamberg, P., Parian, M. and Lund, C., 2015. Using Mineral rather than Elemental Grades in Mineral Resource Estimate – Motivation and Techniques. 13th SGA Biennial Meeting, Nancy, France, 24-27 August 2017.
Viktor Lishchuk
Pierre-Henri Koch
Emerald – M.Sc. Program in Georesource Engineering
top related