Noncyanide leaching of an auriferous pyrite ore from Ecuador

G. A. Munoz, J. D. Miller

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

20 Citas (Scopus)

Resumen

Gold leaching of an auriferous pyrite ore from the Portovelo deposit in Ecuador indicates that noncyanide leaching systems, such as thiocyanate and thiourea, are not as effective as the traditional cyanide system. For example, whereas approximately 95% of the gold can be leached from the ore with cyanide, only about 50% gold dissolution can be achieved with a thiocyanate leaching system. Electrochemical measurements indicate that gold is not cathodically protected by pyrite in these systems. Based on the results of preliminary diagnostic experiments, it appears that gold dissolution in thiocyanate and thiourea systems is limited by passivation due to the formation of either elemental sulfur or sulfur compounds on the gold surface.

Idioma originalInglés
Número de artículo99-145
Páginas (desde-hasta)198-204
Número de páginas7
PublicaciónMinerals and Metallurgical Processing
Volumen17
N.º3
EstadoPublicada - 2000
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Noncyanide leaching of an auriferous pyrite ore from Ecuador'. En conjunto forman una huella única.

Citar esto