1.

What is the role of depressant (NaCN) in Froth-Flotation method?

Answer»

(i) It prevents froth formation by one sulphide ore and allowing the other to come into froth. 

(ii) If the ore contains mixture of ZnS and PbS, NaCN allows PbS to come with froth and ZnS to sink.

(iii) It helps to separate two sulphide ores in a mixture like ZnS and PbS.



Discussion

No Comment Found

Related InterviewSolutions