Question

Identify the method used to separate ore from gangue by preferential wetting.

Answer 1

1. The method used is Froth floatation.
2. The process which involves the concentration of ores by separating hydrophobic substances from hydrophilic substances is froth floatation.
3. The process involves the wetting of hydrophobic ores with the help of pine oil.
4. So a froth is formed and which will then carry away from the impurities present in the ore.
5. Especially sulfide ores are separated from this way.
6. So the method is Froth floatation.