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Flotation process beneficiation

2023-04-25 Xinhai (183)

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Flotation is a commonly used method for ore beneficiation, which is based on the difference in the surface properties of minerals and their ability to react with certain reagents. The process involves the use of chemical reagents to separate valuable minerals from gangue minerals by selectively attaching to them.

The flotation process consists of several stages, including grinding the ore to a fine size, conditioning the ore with reagents, and froth flotation separation. In the grinding stage, the ore is ground into a fine powder to liberate the valuable minerals from the gangue minerals. The ground ore is then conditioned with reagents to make the valuable minerals hydrophobic, or water-repellent, and the gangue minerals hydrophilic, or water-loving.

In the froth flotation separation stage, air is bubbled through the conditioned slurry, and the hydrophobic minerals attach to the air bubbles, forming a froth on the surface of the flotation cell. The froth is then collected and the valuable minerals are separated from the gangue minerals.

There are several factors that can affect the efficiency of the flotation process, including the type and dosage of reagents used, the pH of the slurry, the type and size of the flotation cells, and the speed and agitation of the flotation process. The optimization of these factors is important for maximizing the recovery of valuable minerals and minimizing the loss of gangue minerals.

Overall, the flotation process is a widely used method for the beneficiation of a wide range of minerals, including copper, gold, silver, nickel, lead, zinc, and many others.


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