Alternative beneficiation of tantalite and removal of radioactive oxides from Ethiopian Kenticha pegmatite–spodumene ores
dc.contributor.author | Gebreyohannes, B. | |
dc.contributor.author | del Rosario Alberto, V. | |
dc.contributor.author | Yimam, A. | |
dc.contributor.author | Woldetinsae, G. | |
dc.contributor.author | Tadesse, Bogale | |
dc.date.accessioned | 2017-07-27T05:20:41Z | |
dc.date.available | 2017-07-27T05:20:41Z | |
dc.date.created | 2017-07-26T11:11:27Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Gebreyohannes, B. and del Rosario Alberto, V. and Yimam, A. and Woldetinsae, G. and Tadesse, B. 2017. Alternative beneficiation of tantalite and removal of radioactive oxides from Ethiopian Kenticha pegmatite–spodumene ores. International Journal of Minerals, Metallurgy and Materials. 24 (7): pp. 727-735. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/54369 | |
dc.identifier.doi | 10.1007/s12613-017-1456-8 | |
dc.description.abstract |
The beneficiation methods for Ethiopian Kenticha pegmatite–spodumene ores were assessed through mineralogical and quantitative analyses with X-ray diffraction (XRD) and energy-dispersive X-ray fluorescence (EDXRF). The tantalite in the upper zone of the Kenticha pegmatite–spodumene deposit is 58.7wt% higher than that in the inner zone. XRD analysis revealed that the upper zone is dominated by manganocolumbite, whereas the inner zone is predominantly tantalite-Mn. Repeated cleaning and beneficiation of the upper-zone ore resulted in concentrate compositions of 57.34wt% of Ta 2 O 5 and 5.41wt% of Nb 2 O 5 . Washing the tantalite concentrates using 1vol% KOH and 1 M H 2 SO 4 led to the removal of thorium and uranium radioactive oxides from the concentrate. The findings of this study suggest that the beneficiation and alkaline washing of Kenticha pegmatite–spodumene ores produce a high-grade export-quality tantalite concentrate with negligible radioactive oxides. | |
dc.publisher | Beijing Keji Daxue | |
dc.title | Alternative beneficiation of tantalite and removal of radioactive oxides from Ethiopian Kenticha pegmatite–spodumene ores | |
dc.type | Journal Article | |
dcterms.source.volume | 24 | |
dcterms.source.number | 7 | |
dcterms.source.startPage | 727 | |
dcterms.source.endPage | 735 | |
dcterms.source.issn | 1674-4799 | |
dcterms.source.title | International Journal of Minerals, Metallurgy and Materials | |
curtin.department | Dept of Mining Eng & Metallurgical Eng | |
curtin.accessStatus | Fulltext not available |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |