(a) Why isit that onlysulphideoresareconcentratedbyfrothfloatationproc – InterviewSolution

1.	(a) Why isit that onlysulphideoresareconcentratedbyfrothfloatationprocess ?or Why isthefrothfloatationprocessselectedfortheconcentratedofsulphide ores ? (b) Whichofthefollowingores canbeconcentratedbyfrothfloatationmethodandwhy ?Fe_2O _ 3, ZnS, Al_2O _3
Answer» SOLUTION :(a) Thesulphideoreparticlesarepreferentiallywettedby OIL,becomelighterandthusrisetothesurfacealongwiththefrothwhile thegangueparticlesarepreferentiallywettedbywater,becomeheavierandthussettleatthebottomofthetank. Inthisway,SULPHIDE oreparticlesareseparatedand henceconcentratedfromthegangueparticles. (B) Onlysulphideore,i.e., ZNS,isconcentratedbyfrothfloatationprocess.

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