کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8907559 | 1635123 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of mining tailings in México for the possible recovery of strategic elements
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
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چکیده انگلیسی
The supply of minerals and energy is critical to a global society. Extraction of minerals results in the concurrent production of a significant volume of waste material, including tailings. The volume of tailings is normally far more than the liberated resource, tailings may be reprocessing because they often contain significant amounts of potentially valuable elements. The physicochemical, mineralogical and elemental characterization of nine different samples of mining residues from the exploitation of both iron ores and polymetallic minerals (Pb-Zn-Ag) was done to evaluate the possibility of recovery of strategic elements, like Ga, In, Ge and/or rare earth elements. The mineralogical characterization was carried out by X-ray Diffraction and Scanning Electron Microscopy with Energy Dispersive X-ray analysis. The elemental characterization was performed by total digestion and Inductively Coupled Plasma Atomic Emission Spectrometry with a Mass Spectrometer detector and Instrumental Neutron Activation Analysis. The results indicated that the major elements (>100â¯mg/kg) in the samples are Fe, Zn, Pb and Cu. The strategic elements with the greatest recovery potential are Ga, Y, La, Ce, Nd and Sc from iron non-oxidized tailings, indium from a Zn refinery hydrometallurgical waste. While in the old oxidized Pb-Zn-Ag tailings the recovery of Au in particle less than 250â¯Î¼m is viable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of South American Earth Sciences - Volume 88, December 2018, Pages 72-79
Journal: Journal of South American Earth Sciences - Volume 88, December 2018, Pages 72-79
نویسندگان
Agueda E. Ceniceros-Gómez, Karen Y. MacÃas-MacÃas, Jorge E. de la Cruz-Moreno, Margarita E. Gutiérrez-Ruiz, L. Gerardo MartÃnez-Jardines,