Metal Recovery
Gold recovery / Precious Metal recovery
Gold recovery is performed in mines across the world. Various factors are to be overseen like finding a middle ground between presiding over operational costs and maximizing the ROI, furthermore being ecologically sound. Hence activated carbons are used to recover gold with the help of cyanide solution. Activated carbons are generally chosen because of the superior hardness and tight pore structure.
Also, choosing the right activated carbon for your application is critical for maximizing recovery. Ecogreen provides you coconut shell based activated carbon (6X12, 8X16 mesh) which is suitable for Carbon-in-Pulp, Carbon-in-Leach operations and Carbon-in-Column circuits in modern gold mines and gold metallurgical industry. Ecogreen’s employes activated carbons, where high grades of coconut shell based carbons are activated, resulting in high surface area for efficient adsorption and long service life.
Ecogreen’s activated carbon provides the prime merit in the gold recovery industry because of the following advantages:
- Accelerated adsorption kinetics (R Value)
- High Capacity for gold loading (K Value)
- Extremely low soluble gold losses
- High hardness and de-dusted
- Exceptional resistance to attrition
- Low platelet content
- Highly prescribed for preg robbing ores
- Negligible level of carbon losses
- Uniform activation of grains
- Low rate of adsorption deterioration during regeneration cycles
- Excellent dimensional porous shape prevents screen pegging and blinding
- Optimized adsorption reaction.
Carbon-In-Pulp
Here a slurry is formed by crushed the ore finely and blending it to the cyanide leachate solution in an agitation tank. And then the activated carbons are put into it and removed once they are fully pregnant with gold.
Carbon-In-Leach
CIL is more similar to CIP, where the only dissimilarity is that the activated carbons are priorly mixed with the cyanide leachate solution, not with the pulp.
Carbon-In-Column
In CIC the cyanide leachate solution is passed through the columns already containing ore. This process was found more effective in removal of gold from ore of low grade.
