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04 Sep , 2025

Industrial-Grade Activated Carbon Purchasing Guide: Precision Selection Drives Productivity

I. Three Golden Rules for Industrial Activated Carbon Selection 1. Matching the Molecular Size of Pollutants • VOCs Control: Choose 4mm pillared carbon (surface area ≥1000 m2/g) with a mesopore ratio >60%, specifically designed to capture large molecules such as benzene and ketones. • Gold Extraction: 8×30 mesh coconut shell carbon precisely targets Au(CN)₂⁻ complexes, with a gold loading of >320g/ton. • Heavy Metal Removal: Sulfur-impregnated carbon captures Hg²⁺/Cd²⁺ through chemical bonding, increasing penetration capacity by three times. 2. System compatibility determines lifespan • High-pressure reactor: Select spherical granular carbon (compression resistance ≥15N/granule), capable of withstanding 20MPa cyclic shock. • Acidic environment: Use acid-washed pretreated carbon (pH tolerance 1-14), with an ash content <3% to prevent pore clogging. • Fluidized bed system: Customized uniform particle size carbon (0.5-1mm), reducing pressure drop by 40% and saving ¥80,000/year in energy consumption. 3. Lifecycle cost accounting Kelin’s thermal regeneration technology achieves an adsorption retention rate of >90% after five cycles, saving a petrochemical company ¥3.6 million annually. Compared to the frequent replacement of cheaper carbon, total costs are reduced by 50% II. Practical solutions for industrial scenarios ▷ Chemical waste gas treatment • Pain point: Acrylic acid units produce aldehydes that are difficult...
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21 Aug , 2025

Gold Extraction Activated Carbon: Kelin Carbon’s Engineered Advantage for Maximum Recovery

Why Kelin Carbon’s GEAC Stands Out? At Kelin Carbon, we don’t just supply activated carbon—we engineer high-performance gold recovery solutions tailored for CIP, CIL, and CIC processes. Here’s what makes our GEAC the preferred choice for mines worldwide: Get Free Quote 1. Optimized Pore Structure for Maximum Gold Adsorption Precision mesopores (2-50 nm)—ideal for trapping gold-cyanide complexes (Au(CN)₂⁻) efficiently. High surface area (1000-1200 m²/g) ensures rapid adsorption kinetics, reducing gold losses in tailings. 2. Unmatched Hardness & Attrition Resistance Ball-Pan Hardness >98%—withstands aggressive agitation, pumping, and abrasion in CIP/CIL circuits. Minimized carbon fines—reducing gold losses and preventing screen/pump clogging. 3. Industry-Leading Gold Loading Capacity 300-350 g Au/ton carbon—maximizing gold capture before stripping. Faster adsorption kinetics (K-value >0.8 min⁻¹)—speeding up recovery cycles. 4. Rigorous Quality Control for Consistent Performance Every batch tested for Activity, Hardness, Ash Content (❤️%), and Particle Size Distribution. Custom sizing (4×6, 6×10, 6×12 mesh) to match your plant’s screening efficiency. 5. Global Supply Chain & Technical Support 2000+ tons of GEAC in stock—ready for 72-hour global delivery to mines in Africa, Australia, and the Americas. On-site technical support—helping optimize carbon usage for higher recovery rates. Where Kelin Carbon’s GEAC Excels ✔ Carbon-in-Pulp (CIP) & Carbon-in-Leach (CIL) Processes...
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07 Aug , 2025

Gold Activated Carbon: The “Atomic-Level Weapon” for Global Gold Mining Efficiency – Direct Spot Supply, Stable Prices, and Production Capacity

Gold Activated Carbon: The “Atomic-Level Weapon” for Global Gold Mining Efficiency – Direct Spot Supply, Stable Prices, and Production Capacity I. Three Technical Barriers of Gold Activated Carbon (How We Overcome Them) 1. Precise Micropore Control – The Atomic-Level Code for Gold Loading Aperture Control: Micropores between 0.8-1.2nm account for >70% (matching the 0.5nm diameter of Au(CN)₂⁻). Case Study: Using our customized carbon, a high-grade ore in Congo (20g/ton) increased its gold loading from 250g to 345g/ton, with a desorption rate of 99.2%. 2. Balancing Strength and Adsorption Get Free Quote Parameters Military-Grade Gold Carbon Common Industrial Carbon Customer Value Drum Strength ≥98% ≤85% Deep-Sea Mining Saves Over ¥5 Million in Annual Carbon Powder Losses Bulk Density 0.48-0.52g/cm³ 0.4-0.45g/cm³ Adsorption Tower Volume Utilization Increased by 30% 3. Regeneration Technology – The Core of a 40% Reduction in Gold Cost Per Ton Hot Regeneration + Acid Activation: Gold Retention >92% After 5 Cycles (Industry Average <80%) Case Study: A mine in Ghana regenerates 800 tons of carbon annually, saving ¥36 million in new carbon procurement costs. II. Spot Inventory: The “Ammunition Depot” of Global Gold Mines Customer Use Cases Provided 200 tons of 8×30 mesh coconut shell gold carbon for gold...
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25 Jul , 2025

Coconut shell activated carbon: strategic material reserves under raw material fluctuations – direct spot supply, stable price and supply

The global coconut shell raw material price increased by 35% year-on-year (Q2 2025 data), but coconut shell activated carbon is still irreplaceable in the field of gold extraction and drinking water purification. 1. Technical barriers behind the price increase of coconut shell 1. Gold extraction: the irreplaceability of coconut shell charcoal Pore structure: natural micropores (0.8-2nm) perfectly match the gold cyanide complex (Au(CN)₂⁻ diameter 0.5nm), gold loading > 300g/ton (coal-based charcoal is only 150g/ton) Strength advantage: drum strength ≥ 98%, deep-sea heap leaching withstands 20MPa pressure (actual measurement at a gold mine in Indonesia) Case: A mine in Western Australia switched to coconut shell charcoal, the desorption rate increased from 92% to 99.5%, and the annual recovery of gold increased by 1.2 tons 2. Drinking water safety: the only compliant choice Safety certification: NSF/ANSI 61 certification requires coconut shell/fruit shell sources (coal-based carbon is prohibited) Adsorption efficiency: iodine value ≥ 1000mg/g, can remove 2nm antibiotics (such as sulfamethoxazole) Case: Coconut shell carbon filter bed (CT value = 30,000) of a water plant in the Yangtze River Delta, PFAS removal rate > 99% II. Spot inventory: ballast stone to resist raw material fluctuations Spot advantages: lock in pre-price increase costs, customized...
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11 Jul , 2025

Practical Guide to Industrial Waste Gas Treatment with Columnar Activated Carbon

When industrial customers choose columnar activated carbon (GAC) to treat waste gas, they are most concerned about the three pain points of cost control, compliance, and convenient operation and maintenance. This article uses real data and cases to directly address the core needs! Get Free Quote 1. The five major issues that industrial customers are most concerned about Pain points Pillar activated carbon solution Parameter support High operating cost Recycled 5-8 times, the cost of treating one ton of waste gas is ￥0.3-0.8 Compared with disposable carbon, it saves 60% The equipment occupies a large area High stacking density (0.5g/cm³), the tank volume is reduced by 40% Only Φ3m×6m tank is needed to treat 50,000 m³/h air volume Emissions do not meet the standards Carbon tetrachloride adsorption rate＞65%, non-methane total hydrocarbons＜50mg/m³ Meet the national standard GB 37822-2019 Frequent replacement Compressive strength＞12N/particle, backwash loss＜3%/year Lifespan 24-36 months (granular carbon only 12 months) Hazardous waste disposal is difficult Equipped with a thermal regeneration system, waste carbon reduction by 90% Iodine value retention rate after regeneration ≥ 85% II. Benchmark case – data speaks Case 1: VOCs treatment in automobile paint shop (a German brand) Working conditions: Air volume 80,000m³/h, xylene peak concentration...
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27 Jun , 2025

Activated carbon gold extraction technology: efficient capture from mines to gold ingots

The core parameters that customers care about most Get Free Quote Parameters Industry standards Impact on production Test methods Gold loading ≥300 g Au/ton of carbon Determine carbon usage and replacement frequency Fire assay (ISO 15249) Adsorption rate ＞95% (within 1 hour) Affects the number of leaching tanks and residence time Dynamic column adsorption test Desorption rate ≥99.9% (high temperature and high pressure method) Correlate gold recovery efficiency and carbon regeneration cost Sodium cyanide/sodium hydroxide elution Abrasion resistance ≥95% Reduce the loss of fine carbon powder (annual loss <5%) ASTM D3802 drum method Particle size 6-16 mesh (1.2-3.3mm) Balance adsorption speed and fluid resistance ASTM E11 screening Ash content ≤3% Avoid impurities blocking carbon pores GB/T 7702.15-2008 Three golden rules for selecting activated carbon Material priority: Coconut shell charcoal: well-developed micropores (pore size 1-2nm), gold loading 350g/ton (high-grade ore recommended) Apricot shell charcoal: high strength, wear resistance 15% better than coconut shell (suitable for high-wear CIP process) Aperture adaptation: Gold cyanide complex diameter 0.5nm → Choose carbon with micropore ratio > 70% Regeneration economy: High-quality carbon can be thermally regenerated 5 times (gold retention rate > 90%), and the cost per ton of carbon is reduced by 40% III. Actual...
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