70% ctc Coconut Shell Carbon for Gold Recovery

Premium Coconut Shell Activated Carbon for Gold Extraction (CIP / CIL)

Maximize your gold yield with our advanced coconut shell activated carbon, engineered specifically for high-efficiency gold capture from cyanide pulp and leaching solutions. Designed to excel in both Carbon-in-Pulp (CIP) and Carbon-in-Leach (CIL) processes, our product consistently minimizes carbon loss while maximizing gold-loading capacity — giving your operation a decisive competitive edge.

The Science Behind the Efficiency: Triple Synergistic Mechanism

Our premium activated carbon doesn't merely filter — it actively captures gold through a highly developed, three-tier molecular mechanism, delivering over 30% higher gold-loading capacity compared to conventional alternatives.

① Precision Physical Adsorption

Featuring a massive specific surface area of 1,000 – 1,600 m²/g and a finely engineered micropore architecture — pores below 2 nm account for ≥ 60% of total pore volume. This molecular-scale footprint perfectly matches the dimensions of the gold cyanide complex ([Au(CN)₂]⁻, approx. 0.5 nm in diameter), acting as a precision molecular trap that locks gold ions deep within the carbon matrix.

② Targeted Chemical Adsorption

The carbon surface is richly functionalized with oxygen-containing groups — including carboxyl and phenolic hydroxyls — that selectively attract and anchor cationic complexes through powerful electrostatic interactions, ensuring a stable and selective bond between carbon and gold.

③ Ion-Pair Fixation

Gold cyanide complexes spontaneously form electrically neutral ion pairs with surrounding cations, locking themselves firmly and permanently deep within the carbon's internal microporous network for maximum retention and minimal gold loss during subsequent processing stages.

Core Technical Specifications

Every batch is engineered and quality-controlled for durability, high capacity, and maximum recovery performance.

Expert Guide: Process Optimization Parameters for CIP & CIL Operations

To help you achieve the highest adsorption efficiency and lowest operational costs, our metallurgical engineers recommend the following optimized parameters. These values are derived from extensive real-world industrial data across CIP and CIL operations globally.

Stage 1 — Pre-treatment & Cyanidation ( Gold Dissolution )

Stage 2 — Activated Carbon Adsorption ( Core Recovery )

Stage 3 — Desorption & Electrowinning

Note: All parameters above are derived from optimizations based on extensive industrial practice. Values may require adjustment depending on your specific ore properties (gold grade, mineralogy), activated carbon batch specifications, and on-site equipment conditions. For personalized parameter optimization, please contact our dedicated technical support team.

Why Choose Huajing Carbon?

Trusted by the World's Leading Mining Groups

Huajing is the long-term partner of choice for premier international mining corporations, including Zijin Mining, Shandong Gold Group, and Zhaojin Group. Our unwavering commitment to product quality and professional service has positioned us as a preferred supplier across the global precious-metals industry.

Unrivaled Manufacturing Scale & Capacity

With an annual production capacity of 40,000 metric tons, Huajing reliably fulfills large-scale and urgent procurement demands. Our state-of-the-art manufacturing base currently operates 12 integrated gasification-activation furnaces, 10 standalone gasification furnaces, 6 converter units, and 2 advanced Sleipner furnaces — ensuring consistent quality at every scale.

Award-Winning R&D & Innovation

Innovation is embedded in our DNA. Supported by 3 dedicated engineering academies — established in collaboration with Nanjing Forestry University, Shenyang Agricultural University, and the Chinese Academy of Forestry — and 2 provincial-level research centers, Huajing has accumulated over 30 national patents. Our scientific achievements have earned prestigious national recognition, including the National Science and Technology Progress Award, affirming our position as an industry technology leader.

Frequently Asked Questions

Q1: How does your High-CTC Coconut Shell Carbon perform in both CIL and CIP processes?

Whether you operate a CIL (simultaneous leaching and adsorption) or a CIP (sequential adsorption) circuit, our carbon delivers exceptional results in both. Its outstanding mechanical strength of ≥ 97% ensures minimal attrition and breakage even under vigorous agitation, drastically reducing carbon fines, gold carry-over losses, and overall carbon consumption costs.

Q2: Is this carbon suitable for high-density slurries or complex ore compositions?

Absolutely. Our premium-grade carbon is specifically engineered to perform under demanding conditions, including highly viscous pulps and mineralogically complex ores with elevated impurity levels. Its robust, well-developed micropore network enables rapid adsorption kinetics, ensuring a consistent and high-yield gold recovery rate regardless of ore complexity or slurry characteristics.

Q3: Why is High-CTC coconut shell activated carbon the preferred choice for gold extraction?

A CTC activity value of ≥ 60% is a reliable indicator of a densely developed internal microporous structure — precisely the architecture required to trap and retain gold cyanide complexes at the molecular level. Combined with the inherent hardness of premium-grade coconut shells, the result is the ideal balance of high gold-loading capacity, excellent desorption performance, and superior wear resistance. This translates directly into lower carbon consumption, reduced operational downtime, and a stronger bottom line for your operation.