Data revision is a fingerprint of the product, commercial terms and brand/company inputs used for this sheet. The generation time records document preparation, not a material test, batch release or specification approval date.
Technical data sheet & illustrative COA reference · Uniform granular or water-polished activated carbon
Activated Carbon for Gold Recovery
High-hardness coconut shell GAC for CIP, CIL and CIC circuits, reviewed for mesh retention, abrasion, ash and mine-specific gold adsorption testing.
- Pre-attritioned and water-polished mature coconut shell GAC in 6x12 (3.35–1.70 mm), 6x16 (3.35–1.18 mm), and 8x16 (2.36–1.18 mm) mesh to eliminate platelet particles and prevent gold loss through interstage screens.
- Engineered for maximum attrition resistance (>=98% ASTM D3802 ball-pan hardness) coupled with rapid gold cyanide [Au(CN)2-] adsorption kinetics (R-value) and high equilibrium loading capacity (K-value).
- Supplied in heavy-duty 500 kg / 1,000 kg FIBC bulk bags or 25 kg woven bags with 2–5 kg metallurgical lab samples available for mine-site bottle-roll and elution qualification.
1Technical specifications
| Raw material | Selected high-hardness coconut shell |
|---|---|
| Physical form | Uniform granular or water-polished activated carbon |
| Standard sizing | Common sourcing directions: 6x12, 6x16 or 8x16 mesh; final range must match the CIP/CIL equipment |
| Iodine value | Common target: >=1,000 mg/g; premium directions may reach 1,000-1,200 mg/g |
| Hardness | Common target: >=97%, together with abrasion and fines control |
| Ash | Common target: <=5% |
| Moisture | Typically <=5% |
| pH | Typically 8-11 |
| Apparent density | Typical reference range: 480-550 g/L |
| Gold-specific testing | Adsorption rate, loading capacity, K/R values or a mine-specified CIL bottle-roll test |
| Custom manufacturing | 6x12, 6x16 or 8x16 sizing, iodine value, hardness, abrasion, ash, pre-treatment, water polishing and mine-specified gold adsorption testing. |
Iodine value alone does not qualify a gold-recovery carbon. Circuit-specific adsorption kinetics, capacity, hardness, abrasion and particle retention should be evaluated together. Final guaranteed values and test methods must be agreed in the order specification.
2COA reference
Illustrative COA only — batch confirmation required. These example values have no identified lot or test date. They are not a certificate for supplied material or a statement of batch acceptance. Request a dated, batch-specific COA against your signed specification.
| Parameter | Unit | Test method | Example limit | Illustrative value |
|---|---|---|---|---|
| Iodine Number | mg/g | ASTM D4607 | >= 1,050 (or >= 1,000) | 1,075 |
| CTC Activity | wt% | ASTM D3467 | >= 55.0 | 58.4 |
| Ball-Pan Hardness | % | ASTM D3802 | >= 98.0 | 98.7 |
| Total Ash Content | wt% | ASTM D2866 | <= 4.0 | 3.2 |
| Moisture Content | wt% | ASTM D2867 | <= 5.0 | 3.1 |
| Apparent Density | g/L | ASTM D2854 | 480 – 530 | 502 |
| Undersize (<12 Mesh or <16 Mesh) | wt% | ASTM D2862 | <= 3.0 | 1.4 |
3Grading & operating references
| Grading | Aperture range | Hardness reference | Fines / kinetics reference | Circuit fit |
|---|---|---|---|---|
| 6x12 US Mesh (Coarse CIL/CIP) | 1.70 – 3.35 mm | ≥ 98.0% Hardness | Undersize ≤ 2% | High-viscosity agitated CIL/CIP pulp tanks with 0.8–1.0 mm interstage screens |
| 6x16 US Mesh (Standard CIL/CIP) | 1.18 – 3.35 mm | ≥ 98.0% Hardness | High K-Value Rate | Balanced fast gold-cyanide adsorption kinetics and reliable screen retention |
| 8x16 US Mesh (CIC Column / Fast Kinetics) | 1.18 – 2.36 mm | ≥ 98.5% Hardness | Maximum Surface Area | Carbon-in-Column (CIC) clear pregnant leach solution (PLS) & rapid-kinetics circuits |
| Circuit Compatibility | Carbon-in-Leach (CIL), Carbon-in-Pulp (CIP), and Carbon-in-Column (CIC) heap leach |
|---|---|
| Typical Carbon Concentration in Pulp | 10 – 25 g/L in CIL/CIP agitated tanks |
| Interstage Screen Aperture | 0.80 – 1.00 mm wedge-wire screens (matched to 6x12 or 6x16 mesh carbon) |
| Pre-Conditioning Protocol | Factory mechanical attritioning + water de-dusting removes weak platelets prior to bagging |
| Elution & Acid Wash Compatibility | Withstands Zadra / AARL high-temperature caustic-cyanide elution and HCl acid washing |
| Thermal Kiln Regeneration | Engineered for 650–750 °C rotary kiln reactivation with minimal attrition loss |
Operating ranges are selection references, not system-performance guarantees. Confirm suitability using the actual feed, equipment and treatment target.
Reference grades
References support a specification review, not a claim of identical performance, certification or affiliation. Confirm suitability by comparative testing in your process.
| Reference brand / grade | Proposed specification / application | Comparison criteria |
|---|---|---|
| Calgon Carbon GRC-22 / DG-11 Gold Series | Pre-Attritioned Coconut Gold GAC (6x12 / 6x16 / 8x16)CIL, CIP & CIC gold cyanidation circuits | Matched on ≥98% ASTM D3802 ball-pan hardness, platelet removal, and high K/R gold adsorption kinetics |
| Jacobi Carbons GoldSorb 5500 / GoldSorb 6000 / PicaGold | High-Activity CIL/CIP Coconut CarbonHigh-grade and low-grade gold ore leaching & elution | Matched on 1,050–1,150 mg/g iodine, ≥60% CTC, ultra-low undersize fines, and thermal regeneration stability |
| Norit (Cabot) RO 3515 / GCN Gold Grades | Abrasion-Resistant Precious Metal Recovery CarbonGold and silver cyanide complex recovery | Matched on mechanical attrition resistance in agitated pulp and rapid elution recovery |
All third-party brand and grade names are trademarks of their respective owners. They are used for identification only; no affiliation, endorsement or authorization is implied.
Application & purchasing review
Applications: Carbon-in-pulp (CIP); Carbon-in-leach (CIL); Carbon-in-column (CIC); Heap-leach pregnant-solution treatment.
Buyer information: Circuit type, screen aperture, slurry or solution conditions, target mesh, hardness and abrasion criteria, sample-test method, quantity and packing.
Packing: 25 kg bags, 500 or 1,000 kg FIBC bulk bags, and pallet options by order. Standard MOQ: 1 metric ton (1,000 kg) for standard products.
Stock, final MOQ, production date, guaranteed values, packing cost, freight, payment terms and inspection scope are confirmed for the specific quotation and contract.