Oxygen Generators for Mining & Mineral Processing

Oxymat On-Site Oxygen Generators for Mining and Mineral Processing

OXYMAT’s key application is Gold leaching. Oxygen is a crucial element in gold ore processing, essential for pressure oxidation and cyanidation in the gold extraction process.

Using oxygen in the process significantly increases gold recovery and ore throughput while reducing the costs associated with cyanide and waste treatment. Most mining or mineral processing sites are in remote locations, leading to substantial logistics costs for off-site oxygen production. OXYMAT’s on-site oxygen generators offer a cost-effective solution.

Chemical Reaction for Gold Leaching:

4 Au(aq) + 8 NaCN(s) + O₂(g) + 2 H₂O(aq) → 4 Na[Au(CN)₂](aq) + 4 NaOH(aq)

Benefits of Using Oxygen in the Leaching Process

Increased Gold Recovery: Enhances gold cyanidation with higher oxygen levels, boosting the gold extraction rate.
Decreased Retention Time by Leaching: Reduces leaching time by up to 50%, down from the traditional 96-72 hours.
Increased Ore Throughput
Increased Silver Recovery: Silver is also dissolved in the leaching process, enhancing recovery.
Decreased Cyanide Consumption: Less cyanide is needed due to sufficient oxygen levels.
Decreased Waste Treatment: Lower cyanide usage reduces the waste cyanide that needs to be removed, with oxygen also serving as an environmentally friendly oxidizer or as feed gas for an ozone generator.

Special Design Features

Maximum capacity up to 50 TPD oxygen
Low power consumption (0.8 – 1 kW/kg of Oxygen)
Low CO₂ emissions
Built to endure rough conditions and extreme industrial environments
Quick and easy on-site installation and startup
Available in container or frame-built solutions
Remote control access

Types of Mines and Applications

Gold mining and processing
Silver mining and processing
Coal and Copper mining and processing
Diamond mining
Nickel, Lead, Aluminium, and Iron processing

Frequently Asked Questions

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