Description
What is Granular Activated Carbon (GAC)?
Granular Activated Carbon (GAC) is a highly porous material made from carbon rich sources such as coconut shells or coal. It is processed to create a large internal surface area, allowing it to effectively adsorb dissolved metals and impurities from liquids.
In gold and silver recovery, GAC plays a critical role in capturing precious metals from cyanide solutions, making it an essential material in modern mining operations.
Main Benefits of Our GAC
- High adsorption capacity for gold and silver
- Durability with low attrition loss
- Optimised pore structure for precious metal recovery
- Suitable for CIP (Carbon-in-Pulp) and CIL (Carbon-in-Leach) processes
- Consistent particle size for improved flow and handling
- Cost-effective solution for industrial-scale operations
Technical Specifications
| Property | Specification Range |
|---|---|
| Raw Material | Coconut Shell / Coal-Based |
| Particle Size | 6×12 mesh / 8×16 mesh |
| Iodine Number | 900 – 1100 mg/g |
| Hardness | ≥ 95% |
| Ash Content | ≤ 5% |
| Moisture Content | ≤ 5% |
| Surface Area | 900 – 1200 m²/g |
| Bulk Density | 0.45 – 0.55 g/cm³ |
| pH (in water) | 9 – 11 |
| Packaging | 25 kg bags |
Packaging & Supply
| Feature | Details |
|---|---|
| Gross Weight | 25 kg per bag |
| Bag Type | Durable, moisture-resistant |
| Storage | Cool, dry environment |
| Availability | In stock in Kampala |
| Delivery | Nationwide across Uganda |
Major Applications
1. Gold Recovery (Primary Use)
GAC is widely used in gold extraction processes such as:
- Carbon-in-Pulp (CIP)
- Carbon-in-Leach (CIL)
- Carbon-in-Column (CIC)
It adsorbs dissolved gold from cyanide leach solutions, enabling efficient recovery.
2. Silver Recovery
GAC is also effective in recovering silver from ore processing solutions, particularly in combined precious metal operations.
3. Water Treatment (Secondary Use)
- Removal of organic contaminants
- Odour and colour control
- Industrial wastewater treatment
4. Chemical Processing
- Solvent recovery
- Catalyst support
Application Guidance for Gold & Silver Recovery
To achieve the best results, follow these recommended practices:
Process Integration
| Step | Guidance |
|---|---|
| Pre-treatment | Ensure slurry is free of excessive fines and suspended solids |
| Carbon Loading | Use appropriate carbon concentration (typically 10–25 g/L) |
| Contact Time | Maintain sufficient mixing time for optimal adsorption |
| Carbon Movement | Use staged tanks for efficient loading and transfer |
| Elution | Strip loaded carbon using appropriate temperature and chemical methods |
Best Practices
- Avoid excessive mechanical handling to reduce carbon loss
- Regularly screen carbon to remove fines
- Maintain proper pH levels in the leaching solution
- Replace or reactivate carbon when adsorption efficiency drops
Why Choose raeK Chemicals Limited?
- Competitive pricing in Kampala and across Uganda
- Reliable supply chain with consistent stock availability
- Technical support for mining and industrial applications
- Fast nationwide delivery options
- Quality assured products tailored for African mining conditions
Ordering & Delivery
We supply Granular Activated Carbon (GAC) in 25 kg bags, ready for immediate dispatch.
- Available in Kampala
- Delivery across all regions of Uganda
- Bulk orders supported for mining operations
Get a Quote Today
Contact raeK Chemicals Limited today for the best prices on Granular Activated Carbon (GAC) in Uganda. Whether you run a small processing unit or a large scale mining operation, we have the capacity and expertise to meet your needs.
