Activated Carbon for Gold Mining and Precious Metals Recovery

Precious metals extraction is the economically most sensitive application for activated carbon. In CIP (Carbon-in-Pulp), CIL (Carbon-in-Leach), and heap-leach circuits, every performance attribute translates directly into recovery rate and operating cost:

• Adsorption kinetics dictate carbon inventory.

• Mechanical strength dictates attrition losses.

• Elution efficiency dictates cycle turnaround.

A carbon that excels in the lab but pulverizes in pulp agitation causes gold loss with fines, screen blinding, and eluate contamination. PureStar treats mining carbon as a profit lever, not a consumable.

The Core Challenge & Industry Trend

The industry faces an optimization triangle: high gold loading, low attrition loss, and fast elution are difficult to achieve simultaneously.

Many carbons develop "hard-to-elute gold"—auro-cyanide complexes trapped in overly deep or narrow pores that resist standard stripping conditions, creating a hidden inventory loss.

As ore grades decline globally, the pressure on carbon performance intensifies; every gram of unrecovered gold or kilogram of excess carbon makeup directly erodes margin.

The PureStar Advantage

PureStar gold-recovery coconut shell carbon is engineered around optimized pore-mouth geometry and exceptional mechanical hardness.

Rather than chasing maximum micropore depth, we design pore channels that accelerate auro-cyanide diffusion into the particle and release it efficiently during elution.

• "Easy-In, Easy-Out" Philosophy: This approach maximizes actual plant recovery and minimizes carbon turnover.

• High Ball-Pan Hardness: Ensures particles survive aggressive pulp agitation and high-temperature elution cycling intact, drastically reducing gold loss via carbon fines.

Application Scenarios

• 【Gold Extraction】

  Captures auro-cyanide complexes in CIP, CIL, and heap leach circuits with high strength and rapid elution.

• 【Metal Recovery】

  Enables selective adsorption of silver, platinum, and palladium from industrial byproducts and electronic waste.