In mineral hydrometallurgy, particularly in cyanide leaching processes (CIP/CIL and CIC systems), recovering dissolved gold from the liquid phase is the most critical stage of operational success. The quality of the activated carbon used in this process determines the gold loss (barren solution loss) rates of the mining operation, carbon consumption costs, and direct profitability.
As Carbontech, we lead the sector in gold recovery processes with our GOLD Series (GOLD7000 and GOLD6000) activated carbons, which we developed to respond to the demanding facility conditions and high mechanical resistance requirements of the gold mining industry. In this article, we will examine in detail the technical solutions we offer to the mining sector, ideal mesh sizes, and the operational advantages of our GOLD series.

  1. The Role of Activated Carbon and Critical Parameters in Gold Mining
In gold recovery, activated carbon separates the dissolved gold-cyanide complex  from the liquid phase by trapping it in its pores (adsorption). For a gold activated carbon to perform flawlessly in the mine site, it must possess three basic technical parameters:
  • High Gold Adsorption Kinetics and Capacity (K-Value / R-Value): Determines how fast the carbon pulls gold from the solution and the maximum amount of gold it can hold per gram. High adsorption speed reduces gold escape in tanks to near zero.
  • Ultra-High Attrition and Breakage Resistance (Hardness): Carbon particles are subjected to continuous friction inside leaching tanks under high-speed agitators and dense mineral pulp (slurry). Carbons with low hardness break rapidly and turn into micro-dust. This dusting causes carbon to escape through screens and go to the tailings dam along with the gold it holds, leading to permanent financial losses.
  • Low Platelet Rate: Flaky/flat (platelet) particles must be screened out during carbon production. Flat particles clog tank screens and disrupt the process flow.
  1. CARBONTECH GOLD Product Family and Technical Specifications
Manufactured by subjecting the highest quality coconut shells to advanced thermal activation processes, the Carbontech GOLD series fully meets all these rigorous expectations of the mining sector.
  • 🌟 GOLD 7000 Series: Designed for operations aiming for top-segment performance in gold recovery. With its ultra-high iodine value, optimized micropore structure, and maximum hardness index, it offers minimum attrition rates and maximum gold loading capacity in the most demanding CIP (Carbon-in-Pulp) and CIL (Carbon-in-Leach) lines.
  • 🌟 GOLD 6000 Series: Our reliable industrial solution with high adsorption kinetics, providing an optimum cost/benefit balance in medium and high-grade gold ore deposits, CIC (Carbon-in-Columns) column systems used after heap leach, and standard CIP/CIL processes.
Ideal Particle Sizes: 6x12 Mesh and 8x16 Mesh We offer two ideal size ranges according to your mine's tank screen designs and pulp density:
  • 6x12 Mesh: Prevents screen blinding in high-flow CIP/CIL tanks where pulp flow is dense and pressure drop must be kept at a minimum, thanks to its large particle structure.
  • 8x16 Mesh: Provides higher external surface area per unit volume due to its smaller particle size. It yields perfect results in processes where gold adsorption speed (kinetics) needs to be maximized and in CIC adsorption columns.
  1. Advantages of the GOLD Series in Processes: CIP, CIL, and CIC
  • Carbon-in-Pulp (CIP) & Carbon-in-Leach (CIL): Carbon transferred between tanks must withstand hydraulic wear. Due to its superior mechanical resistance, GOLD7000 and GOLD6000 emerge from repeated regeneration (kiln firing) and acid washing cycles without damage. By maintaining its activation for a long time, it reduces your carbon consumption cost per ton.
  • Carbon-in-Columns (CIC): In columns through which pregnant solutions coming from heap leaching pass, our 8x16 mesh GOLD series captures even the lowest concentration (trace amount) of gold in the solution with high affinity, preventing gold from remaining in the barren solution.

Conclusion and Strong Stock Advantage
In gold mining, a halt in production or the inability to replace carbon beds on time causes irrecoverable financial losses and gold escapes. Ensuring the supply chain security of mining operations is our highest priority.

As Carbontech, we are ready to deliver our GOLD7000 and GOLD6000 series 6x12 and 8x16 mesh gold activated carbons to your mine sites in the fastest way possible with our strong stock structure.

To select the product suitable for your mine site's pulp characteristics, request gold loading test data, access Technical Data Sheets (TDS), and obtain a corporate proposal, you can contact our expert engineering staff.

🌐 Our Website: www.carbontech.net.tr
📩 E-mail: info@carbontech.net.tr
📞 Phone / WhatsApp: +90 552 017 11 04