New video:10 Ton Per Day Mobile CIL Carbon in Leach Plant

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The cyanide carbon leaching process has become the most widely applied method for gold recovery in modern mining. By combining chemical dissolution and carbon adsorption, this process delivers consistently high gold recovery rates across a broad spectrum of ore types.

 

Process Overview

The cyanide carbon leaching method typically involves four major steps:

  1. Crushing and Grinding
    Ore is reduced to fine particles, exposing gold for improved contact with the leaching solution.
  2. Leaching
    Gold is dissolved into solution using a cyanide-based reagent.
  3. Activated Carbon Adsorption
    Activated carbon is introduced to adsorb dissolved gold from the leach solution.
  4. Gold Recovery (Elution)
    Adsorbed gold is stripped from the carbon for refining into bullion.

CIL vs. CIP: Process Variants

  • CIL (Carbon-In-Leach): Activated carbon is added directly into leach tanks, enabling simultaneous leaching and adsorption.
  • CIP (Carbon-In-Pulp): Leaching occurs first, followed by solution transfer through columns of activated carbon.

The choice between CIL and CIP depends on ore type, plant design, and throughput requirements, with each process offering advantages in efficiency or operational flexibility.

Advantages of Cyanide Carbon Leaching

  • High Recovery Rates – Often above 90%, ensuring maximum value from ore.
  • Broad Applicability – Effective for refractory ores and low-grade deposits that are less suitable for gravity or flotation methods.
  • Proven Reliability – Standardized equipment and operating methods reduce project risk.

While highly effective, cyanide carbon leaching systems require greater capital and operational expenditure than traditional gravity circuits or flotation. Investment decisions often balance upfront costs against higher long-term recovery and plant profitability.

Safe cyanide handling and compliance with environmental regulations are also critical factors in process design.

The cyanide carbon leaching process (CIL/CIP) remains central to gold production worldwide. Its combination of high recoveries, adaptability to different ore bodies, and proven industrial performance make it the preferred method in most large-scale operations.

For mining companies, careful evaluation of ore characteristics and economic trade-offs ensures the selection of the most effective leaching strategy.

Contact Dasen Mining for technical consultation, ore testing, and complete CIL/CIP plant design solutions tailored to your project.

We can provide you with more information about the gold CIL plant. If you have any questions, please contact:
Whatsapp:+86 133 1927 7356
Email:[email protected]