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Dhruv Gupta Grade: 12
        

Explain the froth floatation process?

8 years ago

Answers : (5)

askIITIians Expert
21 Points
										Froth Flotation Process
Ore contains rocky impurities which are needed to be separated before processing. This process is called concentration of ore. 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. In this process, a suspension of a powdered ore is made with water. In this process, a suspension of a powdered ore is made with water.
Collectors like pine oil, fatty acids and xanthates are added to it. Froth stabilizers like cresols, aniline stabilize the froth. The minerals particles become wet by oils while gangue particles by water. The mixture is agitated with the help of mechanical stirrer by passing blast of air. The froth is formed which is lighter and skimmed off. The froth is dried for recovery of the ore particles.
8 years ago
Sulbi
11 Points
										Froath flotation processCrushed ore is vigorously agitated by a blast of air with water and a little pine oil.If ore contains sulphides like Pbs,ZnS,CuFeS2 then these sulphides are wetted by pine oil forming the froath on the surface which is skimmed off.Sand and other rocky materials remains at the bottom of the tank.
										
9 months ago
vikram soni
21 Points
										
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
4 months ago
Ars
17 Points
										Ore particles are wetted by pine oil while gangue particles by water so froth caused due to compressed air causes the ore particles to float to the surface while gangue is settled at the bottom.
										
2 months ago
Sudheer
11 Points
										This process is mainly used to concentration low grade sulphide ore. Finally powdered ore is suspended in water,  taken in a tank. To the suspention, oils like pine oil or olive oil is added. Frothing agent like sodium ethyl xanthate is also added. Froth is formed when the suspention is agitated by bubbling air through it. Ore particles adhere to froth and the gangue particles settle down at the bottom of the tank. Froath is stabilized by adding collectors Examples =copper pyrites  ,iron pyrites
										
one month ago
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