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Unlocking Rare Earth Elements from European apatite‐iron ores
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Minerals and Metallurgical Engineering.ORCID iD: 0000-0002-8032-9388
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0002-0935-3430
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.ORCID iD: 0000-0003-4711-7671
Mining Technology R and D, LKAB Kiruna Mine.
2014 (English)In: ERES 2014 - 1st International Conference on European Rare Earth Resources: Book of Proceedings / [ed] Efthymios Balomenos; Dimitrios Panias; Ioannis Paspaliaris, Santorini: Heliotopos Conferences Ltd. , 2014, p. 211-220Conference paper, Published paper (Refereed)
Abstract [en]

Rare Earth Elements are known to occur within apatite‐magnetite ores of the Kiruna type. Previously it was assumed that the REE was associated to the apatite part of the ore. It is now shown that the REE follows the apatite to a much less degree, and that the REE are contained in the minerals monazite, allanite and some unknown REE‐phase still to be identified. Monazite occurs as inclusions in the apatite as well as free particles. Allanite is to some degree in mixed grains with magnetite but also in free particles. Monazite mainly reports to the apatite concentrate while allanite largely goes to the tailings. Laboratory flotation also shows some preferential concentration of heavy REE over light REE to the apatite concentrate. A new EU project, REEcover, will characterise the REE phases in this type of iron ore and among the different process streams within the mineral beneficiation chain.

Place, publisher, year, edition, pages
Santorini: Heliotopos Conferences Ltd. , 2014. p. 211-220
National Category
Metallurgy and Metallic Materials Geology
Research subject
Mineral Processing; Ore Geology; Future mining (AERI)
Identifiers
URN: urn:nbn:se:ltu:diva-31024Local ID: 5107e5e4-c41c-443d-9aad-847abdbdf211ISBN: 978-960-6746-15-4 (print)OAI: oai:DiVA.org:ltu-31024DiVA, id: diva2:1004253
Conference
International Conference on European Rare Earth Resources : 04/09/2014 - 07/09/2014
Note
Godkänd; 2014; 20140907 (palle)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-03-26Bibliographically approved

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Pålsson, BertilMartinsson, OlofWanhainen, ChristinaFredriksson, Andreas

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