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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 tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geovetenskap och miljöteknik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriell miljö- och processteknik.
LKAB, Research & Development, 983 81 Malmberget.
2013 (engelsk)Inngår i: Minerals Engineering, ISSN 0892-6875, E-ISSN 1872-9444, Vol. 49, s. 7-16Artikkel i tidsskrift (Fagfellevurdert) 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.

sted, utgiver, år, opplag, sider
2013. Vol. 49, s. 7-16
HSV kategori
Forskningsprogram
Malmgeologi; Mineralteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-13606DOI: 10.1016/j.mineng.2013.04.005ISI: 000322289500002Scopus ID: 2-s2.0-84878346873Lokal ID: cd7d6665-9db4-4d77-b02c-26cbc1844c01OAI: oai:DiVA.org:ltu-13606DiVA, id: diva2:986559
Merknad
Validerad; 2013; 20130529 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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