Oxygen Plant For Gold Leaching

Oxygen Plant For Gold Leaching

For many years, cyanide has been used to accelerate the recovery of gold from sulfide ores. NEWTEK Oxygen Plant for gold leaching provide an innovative solution that can produce the required oxygen directly on the mining site, thereby optimizing the extraction process.
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Description

Technical Parameters

Oxygen Plant for gold leaching
 

The system uses advanced VPSA (vacuum pressure swing adsorption) technology to accurately control the concentration of oxygen injected into the slurry. The introduction of high concentrations of dissolved oxygen can greatly increase the dissolution rate of metal ions in cyanide salt solutions and improve the overall recovery efficiency. At the same time, the use of oxygen can also significantly reduce the consumption of cyanide salts, thereby reducing the operating costs of mining operations.

The leaching of metals from ores is a complex process that is affected by many factors, including solution composition, redox potential, metal surface area, temperature, and stirring intensity. Among them, the dissolved oxygen concentration is crucial to the entire reaction.

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In actual operation, it is difficult for us to fully control all influencing factors, but key parameters can be optimized in a targeted manner:

 

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 Temperature: Under normal temperature and pressure leaching conditions, the temperature fluctuation is limited and can be regarded as a constant value.
 Metal surface area: For heap leaching or grinding processes, the surface area of ​​metal minerals depends mainly on the mineralogy of the ore itself and the degree of grinding, and can be regarded as a constant within a certain particle size range.
 Redox potential: The operation needs to be carried out within a certain pH range to ensure that the metal ions can be stably present and dissolved in the cyanide salt solution. Within this range, the dissolved oxygen concentration will directly determine the redox potential of the system.

Therefore, increasing the dissolved oxygen level in the solution is the key to improving the efficiency of metal leaching. However, excessive use of oxidants such as cyanide salts not only increases chemical consumption, but may also bring negative operational and environmental impacts.

 

In contrast, the advanced VPSA oxygen generation technology can produce the required oxygen on-site, which can be accurate according to the actual leaching needs.

 

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