Processing of low-grade ultramafic nickel ores: A critical review

Wani, Omar Bashir; Khan, Shaihroz; Shoaib, Mohammad; da Costa Gonçalves, Caroline; Chen, Zhirong; Zeng, Hongbo; Bobicki, Erin R.

doi:10.1016/j.mineng.2024.108976

Minerals Engineering

2024

DOI: 10.1016/j.mineng.2024.108976

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Processing of low-grade ultramafic nickel ores: A critical review

Omar Bashir Wani,

Shaihroz Khan,

Mohammad Shoaib

et al.

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Processing of Oxidized Lead–Zinc Ore by Co-Roasting with Pyrite-Bearing Ore

Antropova,

Gulyashinov,

Budaeva

et al. 2024

Minerals

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The world reserves of oxidized lead–zinc ores are large, but their processing faces significant difficulties due to their refractory nature. This paper presents a novel approach to the preparation of refractory oxidized lead ores for flotation. The proposed method is based on the co-roasting of oxidized lead-bearing ores from the Ozernoye polymetallic deposit (Western Transbaikalia, Russia) with fine-grained sulfide lead–zinc ore sourced from the same deposit and the addition of calcium oxide. This method allows for the activation of mineral complexes, the sulfidation of oxidized lead–zinc minerals, and the minimization of the amount of sulfur dioxide gas emitted. Co-roasting oxidized lead–zinc ore with sulfide ore (10–30 wt. pct) at 650–700 °C has been shown to result in the selective oxidation of pyrite and sulfidation of oxidized lead and zinc minerals. The proposed method of processing polymetallic ores is capable of simultaneously involving not only oxidized lead–zinc ores but also refractory sulfide ores, thereby extending the operational lifespan of the mining enterprise and reducing the environmental impact.

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Processing of Oxidized Lead–Zinc Ore by Co-Roasting with Pyrite-Bearing Ore

Antropova,

Gulyashinov,

Budaeva

et al. 2024

Minerals

View full text Add to dashboard Cite

show abstract

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Processing of low-grade ultramafic nickel ores: A critical review

Cited by 1 publication

References 143 publications

Processing of Oxidized Lead–Zinc Ore by Co-Roasting with Pyrite-Bearing Ore

Processing of Oxidized Lead–Zinc Ore by Co-Roasting with Pyrite-Bearing Ore

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