Production of oxygen and nitrogen directly at your extraction site:
Oxygen and nitrogen play a central role in mining processes: they optimize metal recovery and contribute to the safety of operators on site. Historically, these gases have been delivered by truck and stored in liquid form or in high-pressure cylinders - a solution that is costly, restrictive and presents logistical and safety risks.
Request information
To meet the specific requirements of the mining industry, NOVAIR has developed on-site gas production systems. This proven technology enables autonomous, continuous and controlled production of oxygen or nitrogen, directly from ambient air. The result: increased efficiency, reduced risks and a sustainable alternative to traditional supplies.
Optimization of mining processes
The integration of on-site gas production enables precise control of oxygen or nitrogen concentrations in the various stages of mining. NOVAIR generators guarantee consistent purity, adapted flow rates and continuous availability - essential conditions for optimizing metallurgical processes and securing operations.
- Improving extraction yields (gold, silver) by cyanide leaching with pure oxygen: Cyanide leaching is widely used for gold and silver extraction. Injecting pure oxygen (95%) into the tanks significantly increases the speed and rate of metal dissolution. A controlled oxygen supply also improves oxidation of secondary reagents and limits excessive cyanide consumption.
- Leaching acceleration thanks to increased dissolved oxygen: A high level of dissolved oxygen in leaching solutions accelerates the kinetics of chemical reactions, reducing processing times, increasing the productivity of hydro-metallurgical circuits and reducing the volumes of reagents used.
- Better combustion in metal foundries: In melting operations for metals such as copper or nickel, oxygen enriches the oxidizing mixture, improving flame temperature and energy efficiency. This promotes better separation of impurities and a reduction in pollutant emissions.
- More efficient detonation through controlled oxidation of explosives: Controlled oxidation in the formulation or priming of explosives results in more regular and efficient detonations. This translates into optimized fragmentation, reduced unburnt gas residues, and improved safety on the working face.
- Reducing toxic gases and improving air quality for operators: Oxygen can be used to lower levels of carbon monoxide (CO), nitrogen oxides (NOx) and hydrogen sulfide (H₂S) in the atmosphere of underground galleries. Coupled with a high-performance ventilation system, it helps improve operator comfort and safety, particularly in deep or high-altitude mines.
Practical applications on mining sites
Oxygen
- Cyanide washout: improved gold and silver recovery yield
- Reduced effluent treatment: more efficient oxidation, less residual cyanides
- Enrichment of air: improved working conditions in deep mines or at altitudeOptimization of blasting: better oxidation of explosives
- On-site smelting:enhanced combustion for copper, nickel, etc.
Nitrogen
- Inerting sensitive areas: fire and explosion prevention
- Creation of controlled atmospheres: securing storage facilities or areas
- Specific processes: equipment protection and oxidation reduction
NOVAIR nitrogen and oxygen production solutions for mines
To meet the specific requirements of mining sites, NOVAIR offers state-of-the-art modular generator ranges.
These generators are available in containerized, skid-mounted or cabin-mounted versions, for rapid installation and optimal integration on all types of mining sites, even in remote areas.
Meeting the operational challenges of the mining sector
Safety, performance, autonomy and sustainability with on-site oxygen and nitrogen production
Oxygen and nitrogen requirements in the mining industry are critical, both for process performance and for personnel safety and cost control. NOVAIR offers on-site solutions that effectively meet these operational challenges.
Continuous, autonomous production
Our generators guarantee 24/7 uninterrupted supply, even at remote sites.
Significant savings
On-site production reduces costs by 30-60% compared to delivered gas supply (cylinders or tanker).
Enhanced safety
Our solutions eliminate the need to store gas under high pressure, reducing the risk of on-site incidents.
Total logistical independence
No more transport, storage or delivery management constraints: oxygen or nitrogen is produced on demand, on site.
Concrete environmental benefits
Local gas production eliminates delivery-related emissions, reduces chemical waste (particularly in cyanide processing) and limits the carbon impact of your operations.
Request information
