In froth floatation process for PbS (Galenea) contains ZnS and Fes impurity the depressant we use is:

Froth floatation process is used for the concentration of

Froth floatation process is used for the benefication of :

The froth floatation process is used for the concentration of

NaCN is sometimes added in the froth floatation process as a depressant, when ZnS and PbS mineral are extracted because