Method for improving Recovery of Gold from Gold ores birresistentes

摘要

Comprising: (a) providing a feed material comprising a Precious Metal, at least approximately 0,1% by weight of Sulphur and Sulphide form between 0,3 to 10% by weight of Carbonaceous materials; (b) oxidizing at least a portion of the Sulfur in sulfides from feed material to obtain an oxidised material; (c) float the Feeding material oxidized to separate the material into a First fraction containing at least the largest pa Tens of Gold and / or silver and a Second fraction containing at least approximately 25% of theCarbonaceous materials the feed material; (d) to recover the Gold and / or silver the first Fraction oxidized Milling material; (e) to eliminate, at least partly, the oxidizing Film of at least some particles of oxidized material; (f) condition the oxidised material and mol Eastern Europe putting him in contact with a Collector that becomes more Hydrophobic the Carbonaceous materialWhere the material is oxidized and shredded conditioning is subjected to Flotation STEP (c); (g) to Grind the second fraction to obtain a Second fraction Ground; (H) preparing the second fraction is pressed in contact with the ground Second fraction Collector to float; and (i) l A Second fraction and Milled to obtain a third and Fourth fraction