Question

The method used for the concentration of sulphide ores is:

• A. froth floatation
• B. smelting
• C. magnetic separatio
• D. gravity separation

Answer 1

The correct option is A froth floatation

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. The principle of froth flotation process is that sulphide ores are preferentially wetted by the pine oil, whereas the gangue particles are wetted by the water. Hence the method used for the concentration of sulphide ores is froth flotation.