Leaching chalcopyrite with an imidazolium-based ionic liquid and bromide

Marcelo Rodríguez, Luís Ayala, PEDRO ADRIAN ROBLES VASQUEZ, Rossana Sepúlveda, David Torres, Francisco Raul Carrillo-Pedroza, Ricardo I. Jeldres, Norman Toro

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

11 Citas (Scopus)

Resumen

The unique properties of ionic liquids (ILs) drive the growing number of novel applications in different industries. The main features of ILs are high thermal stability, recyclability, low flash point, and low vapor pressure. This study investigated pure chalcopyrite dissolution in the presence of the ionic liquid 1-butyl-3-methylimidazolium hydrogen sulfate, [BMIm]HSO4, and a bromide-like complexing agent. The proposed system was compared with acid leaching in sulfate media with the addition of chloride and bromide ions. The results demonstrated that the use of ionic liquid and bromide ions improved the chalcopyrite leaching performance. The best operational conditions were at a temperature of 90 °C, with an ionic liquid concentration of 20% and 100 g/L of bromide.

Idioma originalInglés
Número de artículo183
PublicaciónMetals
Volumen10
N.º2
DOI
EstadoPublicada - feb 2020
Publicado de forma externa

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