Question
Distinguish between:
Froth floatation - Leaching

Answer

Froth floatation Leaching
1. The froth floatation method is based on the two opposite properties, hydrophilic and hydrophobic, of the gangue and ore particles respectively. Leaching method is based on the dissolution of ore particles in a certain solution.
2. There is no chemical reaction involved. There is a specific chemical reaction between ore and the solution used for leaching.
3. This method involves the formation of froth from oil, water, and air bubbles together, due to the agitation. There is no formation of froth.
4. This method is used for concentration of zinc blende and copper pyrite. This method is used for the concentration of bauxite.

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