Product Overview
PSD-GOLD is a premium coconut shell granular activated carbon engineered specifically for the rigorous demands of precious metal recovery circuits. Manufactured from dense, mature coconut shells selected for high lignin content, this carbon delivers the robust granular structure required to withstand the abrasive conditions of carbon-in-pulp (CIP), carbon-in-leach (CIL), and carbon-in-column (CIC) gold extraction processes.
In gold recovery, carbon fines are silent profit killers. Every gram of carbon dust escaping interstage screens carries adsorbed gold into tailings. PSD-GOLD's >98% hardness—the highest in the coconut shell range—drastically reduces fines generation, cutting gold losses and simplifying tailings management. Combined with a micropore structure tuned for rapid aurocyanide complex adsorption, it achieves competitive gold loadings while maintaining structural integrity through repeated thermal reactivation cycles.
Key Application Areas
- Gold Recovery — CIP/CIL/CIC Processes: Purpose-built for carbon-in-pulp, carbon-in-leach, and carbon-in-column gold extraction circuits, delivering high gold loading capacity and rapid adsorption kinetics in slurry and solution-phase operations
- Precious Metal Refining: Efficient recovery of silver, platinum group metals, and other precious metals from leach solutions and electroplating effluents through selective adsorption
- Mining Operations: Robust performance in large-scale heap leach and agitated leach mining operations where carbon attrition resistance and mechanical strength are critical for minimizing gold losses
- Carbon Regeneration Circuits: Engineered for repeated thermal reactivation cycles, maintaining >90% capacity recovery after regeneration to reduce operating costs in high-volume gold processing plants
- Tailings & Wastewater Treatment: Recovery of residual precious metals from tailings streams and process wastewater, supporting environmental compliance and resource maximization
Specifications
| Technical Specifications | PSD-GOLD | Unit |
| CTC Number | 50 min | % |
| Iodine Number | 1050 min | mg/g |
| Total Ash Content | 5 max | % |
| Moisture | 10 max | % |
| Hardness | 98 min | % |
| Apparent Density | 0.45-0.54 | g/cc |
| Particle Size | 6-12 | mesh |
Available particle size
- 6×12 Mesh
- 4×8 Mesh
Packaging
- The 20 kg / Package
- The 500 kg / Package
Key Performance Metrics
- Superior Gold Loading Capacity: The micropore structure is tuned for aurocyanide complex adsorption, achieving loadings that compete with the best mining carbons globally
- Exceptional Hardness & Low Fines Generation: 98% minimum hardness means less carbon loss per cycle—translating to lower make-up carbon costs and cleaner tailings
- Fast Adsorption Kinetics: The pore size distribution favors fast mass transfer, ensuring gold is captured before it exits the circuit
- Multi-Cycle Thermal Regenerability: Thermal reactivation restores capacity efficiently, with minimal structural degradation over multiple cycles
How PSD-GOLD Achieves Coconut Shell Carbon Gold Recovery
Gold recovery from cyanide leach solutions depends on rapid aurocyanide complex adsorption and high gold loading capacity per unit volume. In the abrasive slurry environments of CIP/CIL/CIC circuits, standard carbons with lower hardness generate excessive fines during interstage screening and carbon transfer, carrying gold losses to tailings and complicating tailings management.
- Raw Material Selection: Dense, mature coconut shell selection with high lignin content is the foundation of PSD-GOLD. The robust granular structure withstands the mechanical stress of continuous slurry pumping, screening, and elution cycling.
- Micropore Engineering for Gold Capture: The micropore architecture is tuned for rapid aurocyanide complex adsorption, achieving competitive gold loadings with fast mass transfer kinetics that capture dissolved gold before it exits the circuit.
- Hardness That Pays Back: The >98% hardness is the highest in the coconut shell range, directly translating to lower carbon makeup rates and reduced gold losses. The pore structure also supports efficient thermal reactivation, restoring capacity for multiple cycles with minimal structural degradation.
Why Choose PSD-GOLD?
Unlike tolling-dependent suppliers, PureStar operates four integrated production facilities with full control from raw material selection to steam activation. Every batch of PSD-GOLD undergoes rigorous hardness and iodine testing to ensure consistent performance in high-abrasion mining circuits. With flexible packaging and technical support for circuit optimization, we deliver not just carbon—but a reliable recovery partner.
Why Mining-Grade Coconut Shell Carbon Matters
Not all activated carbon performs equally in abrasive CIP/CIL slurry environments. Peat-based and wood-based carbons, while lower in initial cost, suffer from higher attrition—their softer structures generate excessive fines during interstage screening and carbon transfer, carrying adsorbed gold into tailings and inflating carbon makeup costs.
Standard coconut shell carbons offer better hardness, yet most are optimized for general applications like air purification or solvent recovery, lacking the specific micropore tuning required for efficient aurocyanide complex capture.
PSD-GOLD fills this gap. Purpose-built for gold recovery circuits, it combines the inherent hardness and purity of premium coconut shell carbon with micropore engineering calibrated for rapid gold adsorption. The result: lower carbon fines, reduced gold losses to tailings, and consistent performance across multiple regeneration cycles—delivering the mining-grade reliability that general-purpose carbons cannot match.