CBSE Class 10 Answered
Write a short note on forth flotation process associated with the extraction of metals form their ores.
Asked by | 11 Sep, 2013, 06:08: PM
Expert Answer
Froth floatation Process:
1. Hydraulic Washing (Gravity Separation)
The ore particles are poured over a hydraulic classifier which is a vibrating sloped table with grooves and a jet of water is allowed to flow over it. The denser ore settle in the grooves while the lighter gangue particles are washed away. This method is used for concentration of heavy oxide ores of lead, tin, iron etc.
2. Froth Floatation
This method employs a mixture of water and pine oil which is made to froth in a tank to separate sulphide ores. The differences in the wetting properties of the ore and gangue particles separate them.
Answered by Hanisha Vyas | 11 Sep, 2013, 06:47: PM
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