First, the full oil flotation method
According to the different lipophilicity and hydrophilicity of various minerals, a large amount of oil is mixed with the slurry, and then the oleophilic mineral adhered to the oil layer is scraped off, and the hydrophilic mineral remains in the slurry to achieve separation. The purpose of the mineral.
Second, surface flotation method
The industrial application appeared in 1892, carefully grinding the dry powder on the surface of the flowing water, the hydrophobic mineral is not easily wetted by the water, relying on the surface tension surface to float on the surface, and accumulating into a thin layer to become a concentrate; Hydrophilic gangue wetted by water flows into the water as waste tailings.
Third, the froth flotation method
At the beginning of the 20th century, the original froth flotation method appeared, which pushed the flotation method forward and appeared many forms of froth flotation.
1. Gas flotation method
2, electrolytic flotation
3. The emergence of flotation reagents by mechanical aeration and agitation flotation method has greatly promoted the development of flotation technology, and their development is interrelated.
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