Sulphuric acid leaching of mechanically activated chalcopyrite

Danny Guzmán, Stella Ordoñez, Claudio Aguilar, Paula Rojas, Daniel Serafni, Washington Silva, Claudio Díaz

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In 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 in increased recovery of Cu. The maximum recovery of Cu was 38.2 % for a milling time of 15 h.
Original languageEnglish
Pages (from-to)32-39
Number of pages8
JournalRevista Facultad de Ingenieria
Publication statusPublished - 1 Dec 2010
Externally publishedYes

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