Processing of Gold Ores Using Guinean Bauxite Waste
M. DOUMBOUYA1,2, K. EL KACEM1, S. KITANE2, A. BELHAJ1
1Université Mohammed V, Rabat, Morocco
2Ecole Nationale de l'Industrie Minérale, Rabat, Morocco
Keywords: gold, bauxite waste, cyanidation, leaching, gravity separation, carbon
Abstract
This paper describes the treatment of gold ores via the bauxite waste mud used as a pH modifier in the cyanidation of gold. The red mud is irrefutable in modifying the pH of gold ore sludges. So any gold contained in the red mud is concentrated by gravity separation and is recovered along with gold from the gold ore. Carbon tests are carried out on cyanide leach solutions to determine the level of deactivation resulted by organics in the bauxite waste mud.
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