What is role of kcn in froth flotation
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Explanation:
Depressants are added to prevent certain type of particles from forming the froth with the air bubbles . for example-to separate zinc sulphide(ZnS) ore from lead sulphide(PbS) ore,sodium cyanide is used as adepressant which acts as adepressant for ZnS but does not prevent PbS from the formation of froth.
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