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Mineralogical-textural characterisation of different apatite-iron ore bodies, Malmberget deposit, Sweden, treated in a sorting process in laboratory scale
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
LKAB, Research & Development, 983 81 Malmberget.
2010 (English)Conference paper, Presentation (Other academic)
Abstract [en]

The Malmberget apatite iron ore deposit encloses more than twenty ore bodies which are mined separately but are blended in the mine before it is hoisted up to the sorting plant. The geology of the deposit shows metamorphic overprints and strong alteration which makes each individual ore body heterogeneous in its composition. In this study the aim is to be able to identify and quantify important mineralogical and textural characters of each ore body which will be part and impact the upgrading process. Two different ores bodies were processed in order to simulate a dry sorting process by bench scale measurements. The analytical methods for quantitative characterisation were optical microscopy and QEMSCAN®. Preliminary results show both differences and similarities between the ore bodies. The mineralogy composition differs between the ore bodies but the most important mineral associations for both ore bodies are binary magnetite/feldspar and magnetite/FeTi-oxides. The magnetite liberation is high for both ore bodies.

Place, publisher, year, edition, pages
2010.
Research subject
Process Metallurgy; Ore Geology
Identifiers
URN: urn:nbn:se:ltu:diva-39549Local ID: e5bb0084-d373-48dd-8ad6-09d6edded1c1OAI: oai:DiVA.org:ltu-39549DiVA: diva2:1013063
Conference
Process Mineralogy'10 : 10/11/2010 - 12/11/2010
Note
Godkänd; 2010; 20140428 (luncec)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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