Progress, challenges, and perspectives of critical elements recovery from sulfide tailings

Nakhaei, Fardis; Corchado-Albelo, Jose; Alagha, Lana; Moats, Michael; Munoz-Garcia, Noelia

doi:10.1016/j.seppur.2024.128973

Separation and Purification Technology

2025

DOI: 10.1016/j.seppur.2024.128973

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Progress, challenges, and perspectives of critical elements recovery from sulfide tailings

Fardis Nakhaei,

Jose Corchado-Albelo,

Lana Alagha

et al.

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Cited by 2 publications

References 277 publications

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Enhanced selective recovery of fine particles by the oscillation turbulence

Sun,

Li,

Zhao

et al. 2024

Journal of Environmental Chemical Engineering

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Enhanced selective recovery of fine particles by the oscillation turbulence

Sun,

Li,

Zhao

et al. 2024

Journal of Environmental Chemical Engineering

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Tellurium Enrichment in Copper Tailings: A Mineralogical and Processing Study

Corchado-Albelo,

Alagha

2024

Minerals

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As the global demand for tellurium (Te) increases, it is crucial to develop efficient recovery methods that consider existing supply streams. This research combines gravity separation and froth flotation processes to enhance the recovery of Te minerals from tailings produced during the beneficiation of copper porphyry ores. Prior to processing, a systematic and comprehensive characterization study of copper tailing (CT) samples was conducted to examine the deportment of Te minerals in different mineral phases and to understand their locking and liberation behavior. Characterization techniques included inductively coupled plasma mass spectrometry (ICP-MS) and TESCAN’s integrated mineral analysis (TIMA). Copper tailing characterization showed that minerals with gold (Au), silver (Ag), bismuth (Bi), and Te were present in various forms, including native Au, electrum, tellurides, and sulfosalts. TIMA revealed that >90% of these minerals were primarily hosted in pyrite as less than 10 µm inclusions in the CT. TIMA also revealed that Te minerals exhibited fine-grained liberation of less than 20 μm. Moreover, TIMA results showed that >80% of mica and other silicate minerals were concentrated in size fractions < 38 μm, suggesting that desliming processes would positively impact Te enrichment. The results from the processing tests showed a Te recovery rate of ~77% and a Te enrichment ratio of 13 when using the combination of gravity separation and froth flotation at 90 g/t xanthate collector and 50 g/t glycol frother. The findings from this study show a significant potential for Te recovery from unconventional sources if appropriate physical beneficiation approaches are adopted.

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Progress, challenges, and perspectives of critical elements recovery from sulfide tailings

Cited by 2 publications

References 277 publications

Enhanced selective recovery of fine particles by the oscillation turbulence

Enhanced selective recovery of fine particles by the oscillation turbulence

Tellurium Enrichment in Copper Tailings: A Mineralogical and Processing Study

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