United Chemical’s premium gold recovery coconut shell activated carbon series (specifically the cost-effective engineering grade AuCarb™ AC50) is engineered specifically for global gold metallurgical extraction operations. Featuring high bulk density and excellent mechanical rigidity, it provides a stable and highly reliable adsorption profile for continuous Carbon-in-pulp loops.
Gold Recovery Coconut Shell Activated Carbon
Premium Granular Carbon for CIP, CIL, CIC, VAT Leaching & Heap Leaching Operations
United Chemical’s newly developed premium gold recovery Coconut ShellActivated Carbon series (including BC1100, AuCarb™ AC50, AC55, and AC60) is engineered specifically for global metallurgical recovery networks. Our products deliver exceptional operational stability across diverse extraction frameworks, including aggressive Carbon-in-Pulp (CIP) and Carbon-in-Leach (CIL) circuits, high-volume Carbon-in-Column (CIC) loops, as well as complex Gold Ore Heap Leaching and continuous VAT Leaching / Tank Leaching facilities. Featuring outstanding mechanical hardness, an ultra-dense sub-nanometer microporous matrix, and highly optimized gold loading kinetics, our activated carbon effectively minimizes gold lock-up, limits carbon fines degradation, and drastically cuts soluble gold losses under the most rigorous, high-attrition mining environments worldwide.
AuCarb™ AC50 Premium Gold Recovery Activated Carbon
Reliable Engineering Grade Coconut Shell Carbon | 6x12 Mesh Standard
AuCarb™ AC50 is a cost-effective engineering grade of renewable, granular microporous activated carbon developed by United Chemical specifically for standard gold metallurgical recovery processes. Formulated from premium chosen coconut hulls, AuCarb™ AC50 features a well-developed internal pore matrix balanced to capture gold-cyanide complexes . Offering a steady-state gold adsorption capacity (K-value ≥26 Kg/t) and reliable adsorption rate (R value ≥ 50.0%), it serves as an excellent operational alternative for replenishment and inventory optimization in Carbon-in-Pulp (CIP), Carbon-in-Leach (CIL), Heap Leaching, VAT Leaching, Gold ore heap leaching, and carbon-in-column (CIC) circuits globally.
Key Features and Process Benefits
• Balanced Loading Kinetics: Reliable R-value K-Value profile ensures steady gold extraction metrics across multiple contactor tanks.
• Excellent Agitation Rigidity: Intrinsic hardness (Ball-pan hardness ≥99.0%) prevents grain degradation and limits fine creation within heavily agitated reactors.
• Precise Particle Sizing: Low platelet content (≤5.0%) ensures fluid fluidics, cutting down screen pegging and downtime risks.
• Sustainable Sourcing & Pricing: Delivers robust physical performance under intensive mining environments with highly competitive, direct factory commercial structures.
AuCarb™ AC50 Premium Coconut Shell Activated Carbon for Gold Recovery
Maximize Gold Recovery. Minimize Carbon Loss.
United Chemical supplies high-performance Coconut Shell Activated Carbon specially engineered for CIP, CIL, CIC, and heap leaching gold recovery plants worldwide.
[ Request TDS & Technical Consultation ] | [ Get Free Carbon Selection Support ]
Why Gold Mines Choose AuCarb™
Global gold mines rely on our carbon to safeguard their metallurgical extraction circuits. Here is why AuCarb™ is the industry standard:
Higher Gold Recovery: High adsorption kinetics ensure faster gold loading.
Lower Carbon Consumption: Extremely low attrition reduces carbon replacement costs.
Stable Quality: Strict batch-to-batch quality consistency.
Lower Gold Loss: High hardness minimizes carbon fines generation.
Longer Service Life: Excellent regeneration performance.
Global Technical Support: On-site and remote metallurgical support.
What Makes AuCarb™ Different?
Our competitive edge lies in our strict material selection and advanced processing capabilities:
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 for gold adsorption.
International Quality Standards: Products are tested according to ASTM, AARL Standards.
Complete Traceability: Every shipment is supported by complete documentation including COA, TDS, and SDS.
AuCarb™ Product Series Comparison
United Chemical provides a complete matrix of activated carbons tailored for different leaching processes:
| Product | Application | Hardness | CTC & Butane Activity | Typical Size |
|---|---|---|---|---|
| AuCarb™ BC1100 | Heap Leach / CIC | 99% | \ | 6x12 Mesh |
| AuCarb™ AC50 | Heap Leach / CIC / CIP / CIL | 99% | ≥ 50% / 19.5% | 6x12 Mesh |
| AuCarb™ AC55 | CIP / CIL | 99% | ≥ 55% / 21.4% | 6x12 Mesh |
| AuCarb™ AC60 | Premium CIP/CIL | 99% | ≥ 60% / 23% | 8x16 / 6x12 Mesh |
Technical Specifications: AuCarb™ AC50
The AC50 series delivers robust mechanical strength and elite adsorption capacity, perfectly tuned for Carbon-In-Pulp (CIP) and Carbon-In-Leach (CIL) circuits.
Physical Parameters
| Property | Specification |
|---|---|
| Raw Material | Premium Coconut Shell |
| Particle Size | 6x12 Mesh |
| Hardness | ≥ 99% |
| CTC & Butane Activity | ≥ 50% / 19.5% |
| Ash Content | ≤ 3.0% |
| Moisture | ≤ 5.0% |
| Apparent density | 0.48-0.55g/ml |
Metallurgical Properties
| Property | Test Method | Specification |
|---|---|---|
| Platelet Content | A.A.R.L | ≤ 5.0% |
| Attrition | A.A.R.L | ≤ 1.5% |
| K Value (Gold Capacity) | A.A.R.L | ≥ 26.0 kg/t |
| R Value (Gold Adsorption) | A.A.R.L | ≥ 50.0% |
Understanding Carbon Performance
To maximize operational profitability, understanding key carbon metrics is essential:
Why Hardness Matters: Hardness directly determines the attrition rate, the generation of carbon fines, and ultimately, the loss of soluble gold to the tailings.
Why K Value Matters: A higher K value indicates a stronger unit capacity for carbon to load gold.
Why R Value Matters: The R value determines the kinetic speed of adsorption, allowing for faster processing.
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™ AC50 series, physical testing confirms that 91.40% of its surface area is composed of strict micropores (0.35~2 nm), making its internal architecture geometrically matched to trap the [Au(CN)2]- complex securely.
Metallurgical Applications
AuCarb™ is engineered for diverse metallurgical pathways, including Carbon-in-Pulp (CIP) optimized for high slurry densities, Carbon-in-Leach (CIL) for simultaneous leaching, Carbon-in-Column (CIC) ensuring ideal fluidization, and Heap Leaching for low-grade solutions.
Typical CIP/CIL Design Parameters Reference
For continuous processing loops, AuCarb™ AC50 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, mitigating soluble tailings loss efficiently.
| Treatment Capacity | CIP Configuration(125000t per month) | CIL Configuration(250000t per month) |
|---|---|---|
| Gold Head Grade | 4 g/t | 4 g/t |
| Pulp FlowRate | 240 m³/h | 475 m³/h |
| No. of Contactors | 6 | 8 |
| Volume of Contactors | 160 m³ | 1780 m³ |
| Mass of AuCarb™ | 5 t per contactor | 20 t per contactor |
| AuCarb™ | 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%. Similar successes in fluidics and pressure-drop reduction have been recorded in Indonesia Heap Leaching and Burkina Faso CIL plants.
| Parameter | AuCarb™ AC50 | Conventional Carbon |
|---|---|---|
| Hardness | 99% | 95% |
| CTC & Butane Activity | ≥ 50% / 19.5% | \ |
| K Value (kg/t) | 26 | 20 |
| R Value (%) | 50 | 40 |
| Attrition | 1.5% | 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: Available in 25kg heavy-duty 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™ AC50 is meticulously engineered for the abrasion and kinetic demands of CIP.
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 COA, 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™ AC50 aligns with various international trade descriptions:
Gold recovery activated carbon
Gold extraction activated carbon
Coconut shell activated carbon for gold recovery
Gold mining activated carbon
Activated carbon for gold extraction
Coconut activated carbon gold mining
Gold adsorption activated carbon
Gold processing activated carbon
Coconut shell charcoal for gold extraction
Premium gold recovery carbon
Active carbon for gold recovery
Activated charcoal for gold mining
Gold cyanide adsorption carbon
CIP activated carbon (Carbon-in-Pulp)
CIL activated carbon (Carbon-in-Leach)
CIC activated carbon (Carbon-in-Column)
Heap leaching activated carbon
Vat leaching activated carbon
Carbon in pulp gold recovery
Carbon in leach gold extraction
Gold cyanidation process carbon
Gold leaching carbon adsorption
Carbon desorption gold process
Elution circuit activated carbon
Gold elution carbon
Tailings gold recovery carbon
High hardness activated carbon gold
Attrition resistant carbon gold recovery
Gold activated carbon R value
Gold activated carbon K value
Ball-pan hardness activated carbon
Low platelet generation carbon gold
High gold loading capacity carbon
Microporous carbon for gold cyanide
Low ash activated carbon gold mining
Preg-robbing prevention activated carbon
Gold cyanide complex adsorption
Activated carbon iodine value gold mining
CTC activated carbon gold
6x12 mesh activated carbon gold
8x16 mesh activated carbon gold
6x16 mesh gold recovery carbon
12x30 mesh activated carbon gold
Granular activated carbon for gold
Irregular granular carbon gold mining
High density gold carbon
Gold carbon particle size distribution
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Coconut shell carbon supplier for gold mines
CIP activated carbon factory
Wholesale gold extraction carbon
Activated carbon price per ton gold mining
Bulk activated carbon for gold recovery
Gold mining chemicals supplier
CIL activated carbon exporter
Gold recovery carbon FOB price
Buy activated carbon for CIP plant
Premium coconut carbon manufacturer
Gold carbon 25kg bag / 500kg jumbo bag
Activated carbon regeneration gold plant
Thermal regeneration of carbon gold
Acid washing activated carbon gold
Carbon reactivation efficiency gold
Carbon attrition loss gold plant
Reducing soluble gold loss
Gold carbon fouling prevention
Carbon inventory management gold CIP
Carbon transfer rate CIL
Gold carbon stripping process
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