Our oxygen generator for mining can work in any altitude, climate, or conditions, this dramatically improves safety for mining personnel but also provides oxygen for the leaching process. Mines that extract gold on an industrial scale usually use the cyanide leaching process. The gold-bearing rock is first ground to this end. A sodium cyanide solution is then allowed to seep through the ground rock. The solution is enriched with artificial oxygen for this purpose. 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. More about the leaching process here.