1. www.gruvochmetallutvinning.se www.siostrim.se PREP – Primary resource efficiency by enhanced prediction Pertti Lamberg Professor in Geometallurgy Luleå University of Technology

2. Geometallurgy group (2010-) Pertti Lamberg Professor in Geometallurgy Jan Rosenkranz Professor in Mineral Processing Christina Wanhainen Associate professor in Economic Geology Cecilia Lund Post Doc Researcher Maria Sinche Gonzales Post Doc (visitor) Abdul MwangaFriederike MinzMehdi ParianViktor Lishchuk Pierre-Henri Koch Professors and post docs PhD students 2 Partners: LTU, LKAB, Boliden, Lundin Mining, Outotec, Chalmers

3. Lowering head grades

4. Norbotten Fe ores Lund 2013

5. Collahuasi - Throughput Alruitz et al 2009

6. Geometallurgy project Production years Cumulative result. M€

7. 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

9. Hyperspectral scanning

10. Mineral liberation measurement at LTU Merlin HR-SEM BSE image Particles de- agglomerated Removal of particles touching edges Segmentation Measurements X-ray BSE

11. 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 Lamberg 2012

12. Particle tracking Mass balancing technique + modeling & simulation framework Lamberg & Vianna 2007 Sphalerite-Pyrite (50%:50%); 50-63 um; tph

13. 1.Deposit modeling 2.Modeling of crushing and grinding processes: 3.Modeling of concentration processes 4.Setup of simulation environment 5.Case studies

14. 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. 13 th 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? 13 th 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. 13 th SGA Biennial Meeting, Nancy, France, 24-27 August 2017. Viktor Lishchuk Pierre-Henri Koch

15. Emerald – M.Sc. Program in Georesource Engineering