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Practical way to quantify minerals from chemical assays at Malmberget iron ore operations: an important tool for the geometallurgical program
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
LKAB, Research & Development, 983 81 Malmberget.
2013 (English)In: Minerals Engineering, ISSN 0892-6875, E-ISSN 1872-9444, Vol. 49, p. 7-16Article in journal (Refereed) Published
Abstract [en]

This is the first step in establishing a geometallurgical program for the Malmberget iron ore deposit, northern Sweden. Geometallurgy captures geological and metallurgical (processing) information into a spatially-based predictive model of mineral processing characteristics. This paper describes the development of a practical, fast and inexpensive technique to quantify minerals from routine chemical assays. Ore samples and process samples from two different orebodies were used in the process of developing this element to mineral conversion technique that involved electron microprobe (EPMA), X-ray fluorescence (XRF) and SATMAGAN analyses. The method was validated against QEMSCAN analyses. From the calculated modal mineralogy an ore classification system was established based on the iron mineralogy, iron mineral grades and gangue mineralogy to create a preliminary geological/geometallurgical model of the ore. However, in a geometallurgical context the modal composition is not sufficient and the geological model requires information on mineral textures, too.

Place, publisher, year, edition, pages
2013. Vol. 49, p. 7-16
National Category
Geology Metallurgy and Metallic Materials
Research subject
Ore Geology; Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-13606DOI: 10.1016/j.mineng.2013.04.005ISI: 000322289500002Scopus ID: 2-s2.0-84878346873Local ID: cd7d6665-9db4-4d77-b02c-26cbc1844c01OAI: oai:DiVA.org:ltu-13606DiVA, id: diva2:986559
Note
Validerad; 2013; 20130529 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Lund, CeciliaLamberg, Pertti

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