Gold Mining

On Site systems are operating now in some of the world’s most remote mines. Regardless of the altitude, climate, or conditions, our systems are increasing gold yield at a rate that pays for the system in a matter of months. By using oxygen to convert mineral sulfides to sulfates and processing them, gold yield can be more than doubled over standard ore gravity separation and concentration. By sparging 94-95% oxygen into a thickened flotation concentrate (which has been heated under pressure) an oxidized slurry results. Not only are U.S. sulphides converted to U.S. sulphates by the O2, but arsenic is converted to ferric arsenate. After neutralizing the oxidized slurry with lime, the slurry can be leached, and gold-bearing solutions recovered and filtered to create the additional yield. The volume of O2 required for the process dictates that the facility have easy access to either cryogenically produced, bulk liquid oxygen, or have the ability to produce its own oxygen. Even if cryogenic O2 is available from a reasonable distance, access for a bulk liquid carrier to the facility is usually a major issue. PSA produced O2 lends itself perfectly to such an application.




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Telephone: 860.667.8888
Toll Free: 888.748.3429