Froth flotation process: i) The froth flotation process is based on the principle of difference in the wetting properties of the ore and gangue particles with water and oil. ii) It is used for the extraction of those metals in which the ore particles are preferentially wetted by oil and gangue particles by water.
Froth flotation method is a kind of mineral processing technology that the solid minerals emerge from water suspension (slurry) according to the physical and chemical properties of the mineral surface.
Froth floatation is based on the principle of the difference in the wetting properties of the ore and gangue particles with the water and oil. This method is used for those metals whose ore gets preferably wet by the oil and the gangue by the water. The sulphide ores get preferably wet by the oil and the gangue with the water.
For froth flotation an aqueous slurry the ground ore is treated with the frothing agent. An example is sodium ethyl xanthate as a collector in the flotation of galena (lead sulfide) to separate it from sphalerite (zinc sulfide).
Froth Flotation Froth flotation is a surface chemistry based separation process which is extensively used in the processing of mineral ore deposits as a method of separating the desired mineral component from their associated gangue material . From: Advances in Colloid and Interface Science 2005