Sulfuric acid leaching of Igarapé Bahia gold-copper ore for copper extraction — An ore pretreatment for gold recovery by cyanidation

Sulfuric acid leaching of Igarapé Bahia gold-copper ore for copper extraction — An ore pretreatment for gold recovery by cyanidation

The high copper grade in the Igarape Bahia (Brazil) gold-copper ore restricts the direct application of the classical cyanidation process. Copper oxide and sulfide minerals react with cyanides in solution, causing high leach-reagent consumption, raising processing costs and decreasing gold recovery....

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Veröffentlicht in:Minerals & Metallurgical Processing 2002-08, Vol.19 (3), p.165-168
Hauptverfasser: Mendes, F D, Martins, A H
Format: Artikel
Sprache:eng
Schlagworte:
Anniversaries
Chemical reactions
Copper
Design techniques
Experiments
Gold
Influence
Mineralogy
Minerals
Particle size
Statistical analysis
Statistical methods
Sulfuric acid
Variables
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creator Mendes, F D
Martins, A H
description The high copper grade in the Igarape Bahia (Brazil) gold-copper ore restricts the direct application of the classical cyanidation process. Copper oxide and sulfide minerals react with cyanides in solution, causing high leach-reagent consumption, raising processing costs and decreasing gold recovery. According to studies, a feasible solution would be to pretreat the ore to remove copper minerals prior to cyanidation.
doi_str_mv 10.1007/bf03403170
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subjects Anniversaries
Chemical reactions
Copper
Design techniques
Experiments
Gold
Influence
Mineralogy
Minerals
Particle size
Statistical analysis
Statistical methods
Sulfuric acid
Variables
title Sulfuric acid leaching of Igarapé Bahia gold-copper ore for copper extraction — An ore pretreatment for gold recovery by cyanidation
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