Beneficiation of metallurgical slags for the recovery of tantalum and niobium oxides

Abstract : This study deals with the recovery of the Ta & Nb oxides contained in metallurgical slags originating from various extractive plants of tin smelting process. Successive acidic and alkaline leaching tests were performed to dissolve the glassy matrix of the slag leading to the concentration of Ta & Nb oxides in the solid residues. These reaction products were subjected to SEM, electron microprobe and XRD examination. Analysis of the variables affecting the leaching step allows the optimization of the process producing concentrates with a (Ta+Nb)2O5 content close to 60 %.
Type de document :
Communication dans un congrès
International October Conference on Mining and Metallurgy (IOC 2013), 2013, Bor, Serbia. pp. 277-280, 2013, Proceedings of the 45th IOC
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https://hal.univ-lorraine.fr/hal-01511142
Contributeur : Ndue Kanari <>
Soumis le : jeudi 20 avril 2017 - 14:14:40
Dernière modification le : mardi 29 mai 2018 - 12:51:03

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Ndue Kanari, Eric Allain, J. Mochón, I. Ruiz-Bustinza, Jacques Yvon. Beneficiation of metallurgical slags for the recovery of tantalum and niobium oxides. International October Conference on Mining and Metallurgy (IOC 2013), 2013, Bor, Serbia. pp. 277-280, 2013, Proceedings of the 45th IOC. 〈hal-01511142〉

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