Activated Carbon for Gold Recovery – FM MAXGOLD

Activated Carbon for Gold Recovery  FM MAXGOLD is a specialized, high-density Granular Activated Carbon (GAC) formulated to maximize gold recovery in the Carbon-in-Leach (CIL) and Carbon-in-Pulp (CIP) processes. Sourced from durable coconut shells, it is engineered to possess an extremely high surface area and a macroporous structure that facilitates the rapid and efficient adsorption of gold-cyanide complexes from pulp slurries. Its exceptional hardness is crucial for minimizing material degradation and gold loss in the highly abrasive and agitated conditions of the recovery tanks.

The superior physical properties of FM MAXGOLD ensure that the carbon remains intact throughout the entire process, from adsorption to stripping, leading to a higher overall yield and a more profitable operation. The product undergoes high-temperature steam activation and carefully controlled particle sizing, delivering a carbon that balances mechanical strength, adsorption selectivity, and low platelet generation — critical for minimizing gold losses in adsorption and elution steps. Developed with ultra-high hardness, optimized pore structure, and superior adsorption kinetics, FM MAXGOLD ensures maximum gold recovery efficiency, reduced attrition losses, and longer service life compared to conventional carbons.

Technical Evaluation & Competitive Advantage 

Unmatched Attrition Index: Our attrition index is consistently at the top of the market. This means FM MAXGOLD is highly resistant to breaking down into fines. Since gold can be lost along with carbon fines during screening, our superior hardness directly reduces gold losses, adding directly to your bottom line.

Optimized Adsorption & Elution: The pore size distribution of FM MAXGOLD is specifically tailored for rapid gold adsorption kinetics while also allowing for efficient elution (stripping) of the gold during recovery. This balance ensures both high loading capacity and efficient metal recovery.

Consistent Performance: Every batch of FM MAXGOLD is rigorously tested for density, particle size, and hardness to ensure consistent, predictable performance across all of your gold recovery operations.

Key Features & Advantages

Superior Gold Adsorption: Optimized microporous and mesoporous structure enhances adsorption of gold cyanide complexes.

Ultra-High Hardness (>98%): Minimizes attrition, reducing gold losses due to fine carbon carryover.

Consistent Particle Size Distribution: Ensures predictable hydraulic performance in adsorption tanks and columns.

High Adsorption Capacity: Iodine number >1100 mg/g, delivering faster loading and higher gold recovery rates.

Low Platelet Generation: Reduces gold solution contamination and simplifies downstream filtration.

Thermal Stability: Withstands high-temperature regeneration in kilns without loss of structure.

Prolonged Service Life: Lower attrition rate ensures multiple regeneration cycles, reducing operating costs.

Coconut Shell Advantage: Dense structure provides higher mechanical strength than coal-based carbons.

Technical Specifications (Typical)

Raw Material: Coconut shell activated carbon

Form: Granular activated carbon (standard size: 6×12 mesh, 8×16 mesh)

Iodine Number: >1100 mg/g

Surface Area (BET): 1000–1200 m²/g

CTC Activity: 55–65%

Apparent Density: 0.48–0.52 g/cc

Hardness Number: >98%

Moisture Content: ≤5%

Attrition Loss: <1%

Platelet Content: Low (<0.1%)

Ash Content: ≤3%

(Note: Exact values may vary depending on grade – tailored versions available for CIL, CIP, and CIC applications.)

Applications

Gold Recovery in CIL Plants – Direct adsorption of gold cyanide complexes during leaching process.

CIP Circuits – Recovery of gold from slurry after cyanide leaching, with optimized carbon activity.

CIC Columns – Recovery of dissolved gold from clarified solutions in heap leach and mill effluents.

Silver Recovery – Capable of adsorbing silver cyanide complexes where applicable.

Refinery Operations – Efficient stripping and regeneration cycles for continuous plant operation.

Performance Differentiator

Compared to conventional carbons, FM MAXGOLD stands out in three critical performance areas:

Attrition Resistance: High mechanical strength ensures low carbon loss during mixing and pumping, minimizing gold loss.

High Kinetics: Balanced pore distribution provides rapid gold adsorption, improving recovery efficiency at lower residence times.

Regeneration Endurance: Retains adsorption capacity even after multiple thermal regenerations, lowering lifecycle costs.

This makes FM MAXGOLD an ideal choice for gold mining companies looking to maximize recovery, minimize losses, and extend carbon life under demanding operational conditions.

Frequently Asked Questions about FM MAXGOLD

What mesh sizes is FM MAXGOLD available in?

The standard sizes are 6×12 mesh and 8×16 mesh. Tailored grades are available for CIL, CIP and CIC applications.

Why use coconut shell activated carbon for gold recovery?

Coconut shell carbon has a dense structure with higher mechanical strength than coal-based carbon. It resists breaking down into fines, which reduces the gold lost with carbon fines during screening.

What are FM MAXGOLD’s key specifications?

Typical values are a hardness number above 98%, an iodine number above 1100 mg/g, attrition loss below 1%, ash content of 3% or less, and CTC activity of 55–65%.

Can FM MAXGOLD be regenerated?

Yes. FM MAXGOLD withstands high-temperature regeneration in kilns without losing its structure, so it can be reused for multiple cycles, which lowers operating costs.

Which processes is FM MAXGOLD used in?

It is used in Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP) and Carbon-in-Column (CIC) circuits, including heap leach operations, as well as for silver recovery and refinery operations.

How do I get a price for FM MAXGOLD?

Use the “Request a quote” form on this page with the quantity and destination you need, or contact us on WhatsApp.