flotation of lead and zinc from lead zinc pyrite ore pdf

Collectorless flotation of lead And zinc sulphidefrom Derek y ore deposite 199 199 100 passing 150 m 80 69 m Rotational speed of the impeller was 1500 rpm and aeration rate was 275 dcm3min throughout the experiments The frother MIBC dosage was kept constant in all tests as 90 gMg