AuCarb™ AC60 Premium Gold Recovery Activated Carbon
High-Kinetics Coconut Shell Carbon for Gold Mining | 6x12 Mesh & 8x16 Mesh
United Chemical’s newly developed premium gold recovery coconut shell activated carbon series (specifically the flagship grade AuCarb™ AC60) is engineered specifically for global gold metallurgical extraction operations. Featuring an ultra-dense microporous matrix and exceptional mechanical rigidity, it guarantees the lowest rate of soluble gold loss in tailing slurries.
AuCarb™ AC60 is United Chemical’s flagship grade of renewable, granular microporous activated Carbon, engineered explicitly for high-efficiency gold metallurgical recovery processes. Formulated from premium-grade coconut hulls, AuCarb™ AC60 features an extensively developed sub-nanometer pore size distribution optimized to selectively capture gold-cyanide complexes [Au(CN)₂]⁻. It delivers outstanding gold loading kinetics (R-value ≥60%) and high adsorption capacities (K-value ≥30Kg/t), making it highly recommended for initial filling and carbon replenishment in demanding Carbon-in-Pulp (CIP), Carbon-in-Leach (CIL), VAT Leaching, Gold ore heap leaching, and carbon-in-column (CIC) loops.
Key Features and Process Benefits
• Rapid Adsorption Kinetics: Exceptional R-value ensures accelerated gold extraction rates, even in heavily fouled or high-viscosity circuits.
• Extreme Resistance to Attrition: Ball-pan hardness ≥99.0% minimizes carbon structural collapse and degradation under aggressive reactor agitation and inter-particle friction.
• Negligible Carbon Fines Loss: Highly rigid profile prevents screen pegging, clogging, and subsequent precious metal loss into the tailing dams.
• Excellent Regeneration Performance: Maintains excellent 3-dimensional shape, structural pore integrity, and low head losses across multiple thermal reactivation and acid-washing cycles.
AuCarb™ AC60 Premium Gold Recovery Activated Carbon Coconut Shell Carbon for CIP/CIL/CIC Gold Mining
High-Kinetics Granular Microporous Carbon for CIP/CIL/CIC Cyanidation Circuits
United Chemical’s ultimate gold recovery Coconut ShellActivated Carbon (AuCarb™ AC60) represents the pinnacle of metallurgical carbon engineering. Exclusively designed for high-capacity, high-gold-grade mining operations, it delivers technologically advanced microporosity to ensure superior gold recovery with absolute minimal mechanical wear. Rivaling and surpassing top-tier international standards (such as Jacobi G210S), AC60 is the definitive choice for mines where maximum yield and zero-tolerance for soluble gold loss are critical.
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Critical Performance Benchmarks: Why It Matters?
For high-capacity, high-grade gold mines, conventional carbon is a bottleneck. AuCarb™ AC60 is technologically differentiated to maximize your extraction yields through elite metallurgical benchmarks:
What Makes AuCarb™ AC60 Different?
The AC60 series is a product of technological differentiation, aimed at maximizing ROI for large-scale producers through elite manufacturing:
Selected Premium Coconut Shell Raw Materials: Only mature high-density coconut shells sourced from Southeast Asia are selected for production.
Advanced Steam Activation Technology: Physical steam activation develops highly optimized microporous structures specifically tailored for massive gold adsorption capabilities.
International Quality Standards: Products are stringently tested according to ASTM and AARL standards.
Complete Traceability: Every shipment is supported by complete documentation including TDS, COA, and SDS.
AuCarb™ Series Selection Matrix
United Chemical provides a complete matrix of activated carbons, with AC60 engineered specifically for the highest capacities and gold grades:
| Grade | Core Application | Hardness | CTC / Butane Activity | Typical Size |
|---|---|---|---|---|
| AuCarb™ BC1100 | Heap Leach / CIC | 99% | \ | 6x12 Mesh |
| AuCarb™ AC50 | Standard CIP / CIL / CIC | 99% | ≥ 50% / 19.5% | 6x12 Mesh |
| AuCarb™ AC55 | Enhanced CIP / CIL / CIC | 99% | ≥ 55% / 21.0% | 6x12 Mesh |
| AuCarb™ AC60 | Premium CIP / CIL / CIC | 99% | ≥ 60% / 23.0% | 8x16 / 6x12 Mesh |
Technical Specifications: AuCarb™ AC60
The AC60 series delivers industry-leading mechanical strength and maximum adsorption capacity, perfected for high-grade Carbon-In-Pulp (CIP), Carbon-In-Leach (CIL), and high-volume CIC circuits.
Physical Parameters
| Property | Test Method | Guaranteed Spec |
|---|---|---|
| Raw Material | / | Premium Coconut Shell |
| Particle Size (>8 mesh) | ASTM D2862 | < 5.0% |
| Particle Size (<16 mesh) | ASTM D2862 | < 4.0% |
| Apparent density | ASTM D2854 | 0.45 - 0.55 g/ml |
| Ball-Pan Hardness | ASTM D3802 | ≥ 99.0% |
| CTC Activity | ASTM D3467 | ≥ 60.0% |
| Butane Activity | ASTM D5742 | ≥ 23.0% |
| Total Ash Content | ASTM D2866 | ≤ 3.0% |
| Moisture Content | ASTM D2867 | ≤ 5.0% |
Metallurgical Properties
| Property | Test Method | Guaranteed Spec |
|---|---|---|
| Platelet Content | A.A.R.L | ≤ 5.0% |
| Attrition | A.A.R.L | ≤ 2% |
| K Value (Gold Capacity) | A.A.R.L | ≥ 30.0 kg/t |
| R Value (Adsorption Rate) | A.A.R.L | ≥ 60.0% |
K-Value / R-Value Adsorption Kinetics
To maximize operational profitability in high-grade extraction, understanding key carbon metrics is essential:
Why K Value Matters: The industry-leading K value (≥30 kg/t) of AC60 provides the absolute maximum unit capacity for loading gold, which is strictly required for treating high-grade ores without causing premature saturation.
Why R Value Matters (Adsorption Rate): The R-value determines the kinetic speed. AC60's ultra-fast adsorption rate (≥60%) ensures that even minimal gold traces in high-volume flows are captured efficiently.
Why Hardness Matters: Hardness directly determines the attrition rate, preventing the loss of soluble gold to the tailings.
Why Low Attrition Matters: Minimizing attrition directly reduces the flow of gold into the tailings dams.
How Activated Carbon Adsorbs Gold
The extraction of gold relies on the successful adsorption of the gold-cyanide complex ion, [Au(CN)2]-, into the carbon's micropore structure. Mass transfer and adsorption kinetics dictate the speed and efficiency of this process.
For the AuCarb™ AC60 series, our advanced steam activation process creates a dominant presence of strict micropores (0.35~2 nm), expanding the internal architecture to be geometrically matched to trap the [Au(CN)2]- complex securely in massive quantities.
Metallurgical Applications
AuCarb™ AC60 is engineered for diverse metallurgical pathways, excelling in Carbon-in-Column (CIC) loops, Carbon-in-Pulp (CIP) optimized for high slurry densities, and Carbon-in-Leach (CIL) for simultaneous leaching.
Typical CIP/CIL Design Parameters Reference
For continuous processing loops, AuCarb™ AC60 flawlessly fits a standard CIP circuit treating 125,000 tonnes of gold ore per month (Head grade: 4g/t, pulp flow rate: 240 m³/h). Across 6 contactors with volumes of 160 m³ each, it stabilizes a carbon mass of 5 tonnes per tank under a transfer velocity of 2.75 tonnes per day. For expanding high-volume CIL extraction environments, it easily sustains steady-state throughput profiles up to 250,000 tonnes of ore monthly.
| Treatment Capacity | CIP Configuration (125,000t/month) | CIL Configuration (250,000t/month) |
|---|---|---|
| Gold Head Grade | 4 g/t | 4 g/t |
| Pulp Flow Rate | 240 m³/h | 475 m³/h |
| No. of Contactors | 6 Contactors | 8 Contactors |
| Volume of Contactors | 160 m³ | 1780 m³ |
| Mass of AuCarb™ | 5 t per contactor | 20 t per contactor |
| Rate of AuCarb™ Transfer | 2.75 t per day | 5.5 t per day |
Regeneration & Reactivation
Maintaining long-term carbon vitality is crucial for minimizing OPEX:
Acid Washing: Removes inorganic foulants like calcium and magnesium scale.
Thermal Reactivation: Restores microporous structure via kilns at high temperatures.
Lifespan: AuCarb™ features exceptionally high reactivation efficiency, surviving numerous cycles without structural collapse.
Global Case Studies & Conventional Comparison
Our products drive metallurgical success globally. For example, at a Tanzania Gold Mine, switching to the AuCarb™ series achieved a gold recovery increase of +2.3%, reduced overall carbon consumption by -18%, and lowered carbon loss by -22%.
| Parameter | AuCarb™ AC60 | Conventional Carbon |
|---|---|---|
| Hardness | 99% | 95% |
| CTC & Butane Activity | ≥ 60% / 23.0% | 45% / 17.0% |
| K Value (kg/t) | 30 | 20 |
| R Value (%) | 60 | 40 |
| Attrition | 2% | 3.0%+ |
Manufacturing, Logistics & ESG
The United Chemical Difference: Raw Coconut Shell Sourcing → Carbonization → High-Temperature Steam Activation → Crushing → Precise Screening → Laboratory Testing → Packaging → Shipment.
Quality Assurance Protocol: Every batch undergoes stringent testing using ASTM and AARL standards. We welcome third-party inspections and maintain complete batch traceability.
Packaging & Shipping: Strictly packed in 25kg heavy-duty laminated elastic PE bags. We offer containerized global shipping under FOB, CIF, CFR, or DDP terms.
Safety & Environmental: We are committed to sustainable coconut shell sourcing, strict carbon recycling practices, and maintaining full ESG environmental compliance.
Frequently Asked Questions & Downloads
What is the best activated carbon for CIP plants? AuCarb™ AC60 is meticulously engineered for the absolute highest kinetics and abrasion demands of premium CIP/CIL/CIC circuits.
What is K value & R value? K value represents equilibrium loading capacity; R value dictates the kinetic rate of gold adsorption.
Why is my carbon fouling? Fouling can occur from organic matter or scale; proper acid washing and thermal reactivation are necessary.
Empower your engineering team:
Technical Data Sheet (TDS)
Certificate of Analysis (COA)
Safety Data Sheet (SDS)
Carbon Selection Guide
Ready to Improve Your Gold Recovery?
Since 1999, United Chemical has been a leading global supplier. We provide not only activated carbon but complete gold recovery solutions, including Product Selection, Laboratory Testing, Site Technical Support, and Carbon Management.
Request TDS, Pricing, and Technical Consultation today:
WhatsApp:+86 173 9270 5576 | Email:info@unitedchemicalcn.com
Technical Reference & Nomenclature Index
For global procurement verification and metallurgical engineering consultations, United Chemical’s AuCarb™ AC60 aligns with various international trade descriptions:
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