Leaching of copper concentrates using NaCl and soluble copper contributed by the own concentrate
Keywords:Copper concentrates, leaching
Leaching of copper concentrates using cupric chlorocomplexes, generated "in situ" by the reaction between Cu(II), aported by the soluble copper content of the concentrate, and sodium chloride in acid media was studied. The concentrate samples were obtained from mineral processing plants from Antofagasta, Chile. Chemical and mineralogical characterization from original concentrates was made. Typical variables such as chloride concentration, soluble copper concentration, leaching time, solid percentage and temperature were studied. DRX and EDS analyzed some of the residues. The experimental results indicated that it is possible to obtain solutions having high copper content ( 15 to 35 g/l) and 2 to 5 g/l free acid in order to submit this solution directly to a solvent extraction stage. The leaching tests use common reactive and low cost such as sodium chloride and sulfuric acid
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How to Cite
Herreros, O., Bernal, N., Quiroz, R., Fuentes, G., & Viñals, J. (2005). Leaching of copper concentrates using NaCl and soluble copper contributed by the own concentrate. Revista De Metalurgia, 41(5), 384–392. https://doi.org/10.3989/revmetalm.2005.v41.i5.228
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