The Next Standard in Responsible Mining

Non-Cyanide Gold Processing: Redefining Safety and Efficiency in Gold Mining.

Supporting the transition toward more responsible gold extraction methods without compromising production performance.

Modern mining operations are increasingly expected to balance recovery objectives with worker protection, environmental responsibility, regulatory readiness, and long-term operational resilience. A non-cyanide approach provides mining companies with an alternative pathway to evaluate safer and more accountable gold processing practices.

Safety-Oriented Processing Supporting more responsible material handling and operational control.
Operational Integration Designed to support structured leaching, adsorption, filtration, and recovery workflows.
Performance-Focused Transition Supporting process evaluation without separating responsibility from production objectives.
Schedule a Technical Consultation Discuss ore characteristics, process requirements, and implementation considerations with our team.
non cyanide processing
How It Works

The Science of Non-Cyanide Gold Processing.

Gold extraction is fundamentally a controlled transfer process. Valuable gold must first be released from the ore, dissolved into a process solution, captured by an adsorption medium, and recovered through downstream refining.

A non-cyanide system follows the same metallurgical objective while using an alternative leaching chemistry and a more controlled circulation model.

From solid gold particles to a recoverable gold-bearing complex.

During leaching, the reagent interacts with exposed gold surfaces and supports the formation of a soluble gold-bearing complex. Under controlled alkaline conditions, oxygen availability, agitation, and contact time influence the transfer of gold from the solid ore into the process solution.

Depending on the validated reagent formulation, this interaction may involve selective leaching behavior, ligand-based complex formation, or chelating interaction with gold-bearing species. The resulting dissolved gold can then be captured using activated carbon or another suitable recovery medium.

Final reagent behavior must always be confirmed through ore-specific bottle-roll testing, laboratory analysis, and controlled field trials.

Conceptual Molecular Interaction Au
Au
L
L
O₂
OH⁻
Solid Gold Surface Soluble Gold Complex

Compare the conventional workflow with a controlled non-cyanide process.

Select a process mode, start the simulation, and follow how the material moves from ore preparation to gold recovery.

Simulation Status Ready to simulate
01
Feed Preparation Ore Liberation

Crushing and milling expose gold-bearing mineral surfaces.

02
Solution Preparation Alkaline Reagent System

Water, pH control, reagent dosing, and oxygen are prepared under controlled conditions.

03
Leaching Reaction Selective Gold Dissolution

Gold transfers from the solid phase into a soluble gold-bearing complex.

04
Gold Capture Carbon Adsorption

Dissolved gold species are captured on activated carbon.

05
Final Recovery Smelting and Refining

Gold-bearing carbon is processed for final metal recovery.

06
Process Control Closed-Loop Recirculation

Process solution is monitored, adjusted, and recirculated to minimize uncontrolled discharge.

Current Stage Ore Liberation
Solution Control
0%
Gold Transfer
0%
Recirculation
0%

Keep the process solution inside the system, not outside the operation.

In a closed-loop configuration, process water and reagent-bearing solution are retained within controlled tanks, pipelines, adsorption units, and circulation systems. The solution is monitored and reused wherever operationally appropriate.

This approach does not eliminate the need for residue management, water testing, containment, or environmental controls. It reduces unnecessary discharge pathways and supports stronger process accountability.

01

Controlled circulation between process stages

02

Lower exposure to uncontrolled solution loss

03

Improved monitoring of reagent concentration

04

Better integration with water-management procedures

Controlled Closed Loop Process System
01 Leaching Tank
02 Carbon Contact
03 Solution Monitoring
04 Recirculation

Chemistry alone does not determine recovery.

Process performance is influenced by ore mineralogy, particle size, reagent concentration, pH, oxygen transfer, contact time, temperature, carbon activity, and solution management.

01
pH

Alkaline Control

Stable pH supports controlled reagent behavior and process consistency.

02
O₂

Oxygen Availability

Aeration can influence oxidation and the kinetics of gold dissolution.

03
t

Contact Time

Sufficient residence time is required for leaching and adsorption.

04
C

Carbon Activity

Carbon quality and loading behavior affect dissolved-gold capture.

05
μm

Particle Liberation

Gold must be sufficiently exposed before the reagent can interact effectively.

06
Au

Ore Mineralogy

Each ore responds differently and requires individual testing.

Technical Evaluation Comes First

Every ore body is different. Every implementation must begin with testing.

The simulations above are educational process visualizations and do not represent guaranteed metallurgical performance.

Schedule a Technical Consultation