This paper reviews the state of the art in processing and extraction of gold. The ore bodies which were considered uneconomical at one time are becoming economical due to new and advanced methods of extraction. The paper discusses the gold treatment methods on free milling ores with conventional cyanidation and refractory ores with direct and pretreatment techniques for the recovery of high gold values Learn More
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In the extraction aspect, the paper discloses two different extraction schemes on treating refractory ores, namely pretreatment followed by gold leaching and direct leaching. Pretreatment process involving roasting chemical oxidation and bio-oxidation have been discussed. Direct leaching of gold ores such as heap leaching, carbon in pulp (CIP), carbon in leach (CIL) and resin in pulp (RIP) are summarized. This paper also dicloses in a detailed manner the research approach on the development of alternative leach reagents which could improve environmental concerns as compared to the use of cyanide
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Three ways for gold ore processing :1.Gold cil & cip 2.Gold washing machine & gold Gravity 3.gold flotation. please see the contents below:1.Gold ore CIL & CIP processGold CIL (Carbon in Leach)leaching process, namely Carbon leaching extraction, it is a process of adding activated Carbon to the slurry and simultaneously leaching and adsorbing gold. This process including leaching pulp preparation, cyanide leaching, activated carbon adsorption, the electric shock to get gold mud, to take off the gold charcoal recirculation, leaching slurry processing etc other seven operation stage.gold leaching processApplication scope:Large scale gold ore dressing, the gold ore which associated more silver and copper.Process advantages:After simplifying the leaching process, it has the advantages of saving infrastructure production costs; gold minerals have high dissolution rate and high recovery rate; adopts high-efficiency and low-cost rapid desorption electrolysis system, the system is high-temperature, high-pressure, non-cyanide, desorption automatic control, efficient, rapid, Low consumption characteristics.1200TPD gold ore CIL customer case:
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