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RECUPERACIÓN DE COBRE CONTENIDO EN ESCORIA DE COBRE MEDIANTE FLOTACIÓN

Authors: Luis Valderrama; Miguel Gonzalez; Mario Santander; Bruno Zazzali;

RECUPERACIÓN DE COBRE CONTENIDO EN ESCORIA DE COBRE MEDIANTE FLOTACIÓN

Abstract

Chile es el mayor productor de cobre en el mundo, y este metal es obtenido principalmente a partir de los sulfuros de cobre, utilizando los procesos clásicos de flotación y pirometalúrgicos. En nuestro país existen siete fundiciones de cobre, las cuales generan grandes volúmenes de escoria. Este trabajo presenta los resultados obtenidos de recuperación de cobre contenido en escorias de horno de reverbero (HR) y de convertidor Teniente (CT) de la fundición Hernán Videla Lira, de Paipote mediante flotación. A través de pruebas de flotación rougher a escala de laboratorio se determinó que la granulometría, para ambos casos, corresponde a 70% menor a 74 µm, lográndose recuperaciones de 59,2% escoria HR y 86,8% para la escoria del CT, cuyas leyes de cobre en el concentrado fueron de 3,7% y 23,6% respectivamente. Las dosis de reactivos utilizados fueron 40 g/t de F-703 como colector y 30 g/t de H-70 como espumante. Los tiempos óptimos de flotación de las etapas rougher y cleaner, de ambas escorias, se determinaron mediante cinéticas de flotación. Finalmente se realizaron pruebas a nivel industrial con los resultados de laboratorio alcanzándose una ley de 18,2% de cobre (recuperación de 56,1%) para escoria HR, y para la escoria CT se obtiene una ley de 39,1% de cobre con una recuperación de 91,4%

Related Organizations
Keywords

A, escoria de cobre, recuperación, General Works, flotación.

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Green
gold