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Novel treatment for mixed copper ores: Leaching ammonia– Precipitation – Flotation (L.A.P.F.)

Víctor Conejeros, Kevin Pérez

2023esmineral processingcopper dissolutionsulfide recovery

Abstract

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Mixed copper ores are challenging to process, where the treatments are expensive, resulting in low recoveries, with products that are not commercially viable. The proposed research aims at a sustainable method to recover copper from a mixture of oxides and sulfides minerals. The procedure involves three stages: (i) leaching with aqueous ammonia solutions at room temperature and varied pH, ammonia concentration, solid concentration, and particle size; (ii) PLS precipitation in copper sulfides by the addition of sulfur (or other copper sulfates) and SO2 (or additional sulfites or bisulfites); (iii) froth flotation to recover the value sulfide, considering a set of collectors and frothers. The outcomes obtained in this work were promising, achieving copper extraction of 70% in the leaching stage, precipitation of copper sulfides that surrounds 90%, and 75% of recovery by flotation.

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Cite This Work

@article{1e6930a2-7caa-41c0-a2b5-bf5e9a1e64db,
  title={Novel treatment for mixed copper ores: Leaching ammonia– Precipitation – Flotation (L.A.P.F.)},
  author={Víctor Conejeros and Kevin Pérez},
  year={2023},
  language={es}
}
TY  - JOUR
TI  - Novel treatment for mixed copper ores: Leaching ammonia– Precipitation – Flotation (L.A.P.F.)
AU  - Víctor Conejeros
AU  - Kevin Pérez
PY  - 2023
LA  - es
ER  -

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