Guzmán, DannyDannyGuzmánOrdoñez, StellaStellaOrdoñezAguilar, ClaudioClaudioAguilarRojas, PaulaPaulaRojasSerafini, DanielDanielSerafiniSilva, WashingtonWashingtonSilvaDíaz, ClaudioClaudioDíaz2026-10-192026-10-192010Guzmán, Danny; Ordoñez, Stella; Aguilar, Claudio; Rojas, Paula; Serafini, Daniel; Silva, Washington; Díaz, Claudio (2010). Sulphuric acid leaching of mechanically activated chalcopyrite. REVISTA FACULTAD DE INGENIERIA-UNIVERSIDAD DE ANTIOQUIA, (56), 32-39. https://doi.org/10.17533/udea.redin.146500120-62302422-2844https://hdl.handle.net/20.500.12740/25436In order to study the effect of mechanical activation on the sulphuric acid leaching of CuFeS2, four samples were milled using an Atritor mill during 1, 5, 8, and 15 h The powders were microstructural and morphologically characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively The samples were leached using a solution of H2SO4 (0 54 M) at 298 K The Cu+2 concentration was determined by means of atomic absorption spectrophotometry The results obtained indicated that the increase in milling time results m increased recovery of Cu The maximum recovery of Cu was 38 2 % for a milling time of 15 heshttps://creativecommons.org/licenses/by-nc-sa/4.0/Leachingmechanical activationCuFeS2X-ray diffractionArticulohttps://doi.org/10.17533/udea.redin.14650