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Apatite concentrate, a potential new source of rare earth elements
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2015 (English)In: TMS Annual Meeting, Minerals, Metals & Materials Society, 2015, 145-156 p.Conference paper (Refereed)
Abstract [en]

Rare Earth Elements (REEs) are critical for the production of many advanced materials and products. Mining and primary production of REEs are generally associated with significant environmental impacts. By recovery of REEs from secondary sources, through recycling or as a byproduct, the adverse environmental impacts may be partly avoided. In the present study apatite concentrate originating from iron ore beneficiation done by LKAB in Kiruna, Sweden, is explored as a possible source for REEs. The composition and distribution of the REEs within the concentrates are studied using ICP-MS, XRD and SEM-EDS/EPMA, as well as the melting point and heat of fusion using DTA-TGA-MS. The behavior of the material during melting has also been studied through wetting and slag saturation experiments. The overall aim of the study is to evaluate the implications for future smelting experiments aimed at concentration and recovery of the REEs.

Place, publisher, year, edition, pages
Minerals, Metals & Materials Society, 2015. 145-156 p.
Keyword [en]
Apatite, Rare earth elements, REE, Carbon, Carbon dioxide, Iron ores, Phosphate minerals, Rare earths, Secondary recovery, Slags, Smelting, Advanced materials, Adverse environmental impacts, Implications for futures, Primary production, Rare earth elements (REEs), Saturation experiments, Secondary sources, Smelting experiments, Environmental impact
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-194719ScopusID: 2-s2.0-84969834416OAI: diva2:1048624
2nd Rare Metal Technology 2015, held during 144th Annual Meeting and Exhibition, TMS 2015, 15 March 2015 through 19 March 2015

QC 20161121

Available from: 2016-11-21 Created: 2016-10-31 Last updated: 2016-11-21Bibliographically approved

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