The reaction of enargite, Cu3AsS4, with alkaline NaClO solutions is of interest for hydrometallurgical applications. In this study, the surface of cleavage fragments was observed ex situ by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) after sequential interaction (up to 240 min) with a 0.27 M NaClO/0.03 M NaOH solution (pH 12.2) at room temperature (295 ± 2 K). Likewise, the evolution of the reaction of enargite powder (25 < size fraction &
The reaction of enargite with alkaline NaClO solutions: an AFM and flow-through study
DA PELO, STEFANIA;LATTANZI, PIERFRANCO
2009-01-01
Abstract
The reaction of enargite, Cu3AsS4, with alkaline NaClO solutions is of interest for hydrometallurgical applications. In this study, the surface of cleavage fragments was observed ex situ by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) after sequential interaction (up to 240 min) with a 0.27 M NaClO/0.03 M NaOH solution (pH 12.2) at room temperature (295 ± 2 K). Likewise, the evolution of the reaction of enargite powder (25 < size fraction &
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