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CYANIDATION & CARBON IN PULP PROCESS (CIP)

The cyclone overflow from both the techniques is subjected to thickening in a High rate thickener to remove excess water, which is passed through a series of carbon column to recover dissolved gold. The thickened pulp of specific solid content is mixed with cyanide for leaching in a series of mechanical agitators at alkaline media. To facilitate leaching hydrogen peroxide assisted with compressed air is used to improve oxygen potential in circuit. The cyanide leached pulp is sent to carbon-in-pulp (CIP) unit, agitated with activated carbon in suspension. The dissolved gold is then absorbed on carbon as sodium auro cyanide. The gold loaded carbon is removed from the CIP periodically and carbon is washed with water and given acid and alkaline treatment.


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