Application of polar collectors on refractory molybdenite ore floatation

A refractory molybdenite ore in Henan gained low grade and recovery using normal flotation.By the research of the property and characteristics on the ore and mineral processing tests,best technology were determined.A polar collector was applied to increase the recovery in roughing,depressant was used to remove other harmful non-molybdenite sulfide ore,and the gangue mineral depressants were used to upgrade concentrate after regrinding.A final qualified molybdenite concentrate with containing 47.13% Mo and the recovery of 80.13% can be obtained.This study has proved that Polar collectors can improve the floatation performans of refractory molybdenite,and it can also be used as reference of other refractory molybdenite ore.