Mineral characterization of the Oum El Khacheb phosphorites (Gafsa-Metlaoui basin; S Tunisia)
In: Arabian Journal of Chemistry, Jg. 12 (2019), Heft 7, S. 1607-1614
Online
academicJournal
Zugriff:
The mineralogy of the Tunisian phosphatic series of the Jebel Oum El Khacheb deposit which belongs to the Gafsa-Metlaoui basin, located in the South of Tunisia, was studied. Chemical and mineralogical characterization of eight representative samples (2 mm–70 μm) were undertaken by X-ray diffraction, thermal analysis TG/DTA, Carbon and Sulfur analyzer and Atomic Absorption Spectroscopy. It was revealed that each phosphatic layer contains various silicates and carbonates. The X-ray diffraction results were supported by the Rietveld method to confirm the presence of certain minor phases (calcite, dolomite, bassanite and anorthoclase). The precision and accuracy of the quantitative-phase analysis, using the Rietveld method as a routine tool for process control, were highlighted. Keywords: Phosphorite, Mineralogy, Quantitative XRD, TGA–DTA
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Mineral characterization of the Oum El Khacheb phosphorites (Gafsa-Metlaoui basin; S Tunisia)
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Autor/in / Beteiligte Person: | Galai, Haykel ; Sliman, Faouzi |
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Zeitschrift: | Arabian Journal of Chemistry, Jg. 12 (2019), Heft 7, S. 1607-1614 |
Veröffentlichung: | Elsevier, 2019 |
Medientyp: | academicJournal |
ISSN: | 1878-5352 (print) |
DOI: | 10.1016/j.arabjc.2014.10.007 |
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