Application Scenarios
Heap Leaching Systems
In heap leaching operations, oxygen availability directly affects oxidation potential and leach solution chemistry. NEWTEK's oxygen generation system supports large-scale heap aeration networks by delivering stable oxygen supply, helping maintain consistent leaching conditions and improving overall metal recovery performance.
Agitation and Tank Leaching
For agitation and tank leaching processes, controlled oxygen delivery supports reaction kinetics and process stability. The system is engineered to integrate smoothly with existing leach tanks and circulation systems, minimizing process disruption while improving oxidation efficiency.
Bioleaching Applications
In bioleaching operations, sustained oxygen supply is critical to bacterial activity and biological oxidation. NEWTEK systems are configured to deliver stable oxygen output over extended operating periods, supporting consistent biological performance and predictable leaching results.
Why Oxygen Matters in Leaching
1️⃣ Reaction Kinetics and Cycle Time
Oxygen acts as a key driver in oxidation-reduction reactions within leaching solutions. A stable oxygen supply accelerates reaction kinetics, shortens leaching cycles, and improves process throughput.
2️⃣Process Stability and Recovery Consistency
Fluctuations in oxygen availability often result in unstable redox conditions and inconsistent recovery rates. On-site oxygen generation helps maintain controlled process conditions, supporting consistent metallurgical performance.
3️⃣Operational Independence
By generating oxygen on site, mining operations reduce reliance on external oxygen supply chains, improving supply security and operational resilience, particularly at remote project locations.
System Design Approach
Process-Driven Configuration
NEWTEK designs each oxygen generation system based on actual leaching process demand. Oxygen purity, flow rate, and delivery pressure are engineered according to ore characteristics, leach chemistry, and solution circulation requirements, ensuring effective oxygen utilization without unnecessary oversizing.
System-Level Integration
The oxygen generator is designed as an integral part of the leaching infrastructure. Integration considerations are addressed during the engineering phase to minimize pressure losses, reduce modification work, and ensure seamless operation with existing process systems.
Oxygen Generation Technology
PSA-Based On-Site Oxygen Production
The system is based on Pressure Swing Adsorption (PSA) technology, which is widely proven in continuous industrial applications. PSA oxygen generation delivers stable oxygen purity suitable for leaching processes while maintaining reliable output under variable load conditions.
Logistics and Supply Advantages
On-site oxygen generation eliminates the need for liquid oxygen transportation and storage, reducing logistical risk and simplifying site infrastructure, especially for mining projects in remote or challenging environments.
System Configuration
Integrated System Architecture
The solution integrates air compression, air pretreatment, PSA separation modules, oxygen buffering, and controlled distribution into a coordinated system. Each subsystem is engineered to operate reliably under harsh mining and metallurgical conditions.
Industrial-Grade Component Selectio
All major components are selected for durability, maintainability, and long service life, supporting continuous operation and reducing long-term maintenance requirements.
Intelligent Control Platform
The system operates under a PLC-based control platform that continuously monitors oxygen purity, flow, pressure, and equipment status. Automated control logic allows oxygen production to follow real-time process demand.
Plant-Level Integration Capability
Communication interfaces enable seamless integration with plant DCS or SCADA systems, allowing centralized monitoring and coordinated control with other process units.
Demand-Based Energy Management
Energy efficiency is achieved through optimized PSA cycle control and efficient compressor selection. Demand-based operation avoids unnecessary full-load running, reducing power consumption.
Lifecycle Cost Performance
Compared with traditional oxygen supply methods, on-site generation provides more predictable operating costs and contributes to a lower total cost of ownership over the lifecycle of the leaching plant.
Reliability & Safety
Designed for Continuous Operation
The system is engineered for 24/7 industrial operation, incorporating conservative design margins and optional redundancy strategies to ensure uninterrupted oxygen supply.
Integrated Safety Design
Oxygen-compatible materials, pressure protection devices, and defined safety logic are incorporated into the system to support safe, compliant operation in mining and metallurgical environments.
System Solution Provider
Project-Level Delivery Capability
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