Flotation Separation Process

Flotation separation is a process of separating mixtures which involves separating substances by whether they sink or float.

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Flotation separation is a process of separating mixtures which involves separating substances by whether they sink or float. This flotation separation process includes coarse separation, swept separation, fine separation and flotation, finally the useful ore are reclaimed. Flotation separation process also has other names, such as flotation plant, flotation line, flotation separation line, flotation seperation plant, etc.

The process used in mining begins with the mixing of finely ground ores with water into a tank or cell. A reagent is used to enhance the hydrophobic properties of the desired compounds to separate them from the residual substances which are more hydrophilic. The mixture is agitated to assure an even dispersion.

The mining uses of froth flotation include the separation of many different types of compounds including sulfides, silicates, phosphates, coal, and iron ore. Reagents or surfactants are carefully chosen to produce exactly the separation effect desired for a particular ore or combination of ores. Many factors affect the quality of separation; these include the rate of flotation, the size of the ore particles, the density of the ore and water mixture, and the amount of air used. A recent use of the process separates ink from recycled paper.