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- Can someone explain Which one of the following ores is best concentrated by froth-flotation method?
- #Chemistry
- #Joint Entrance Examination Main
- #Engineering
- #General Principle and process of Isolation of metals
Which one of the following ores is best concentrated by froth-flotation method?
- Option 1)
Magnetit
- Option 2)
Cassiterite
- Option 3)
Galena
- Option 4)
Malachite.
Answers (1)
As we learnt in
Froth floatation process -
This method is mainly for the concentration of sulphide ores.The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil
- wherein
The gangue preferentially wetted by water and the ore by oil.
Froth floatation process is mainly used for sulphide ores because gangue is preferentially wetted by water whereas the ore by oil. Among the given galena, (PbS) is the only sulphide ore.
Option 1)
Magnetit
This option is incorrect.
Option 2)
Cassiterite
This option is incorrect.
Option 3)
Galena
This option is correct.
Option 4)
Malachite.
This option is incorrect.
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