Optimum Flotation Reagent Addition Rate (Dosage)

By now you are aware of the importance of the effect that the reagents have on single bubbles. Now we will begin to show you how the bubbles effect each other. In the cell the air, the reagents, the mineral and the impellor agitation all combine to create what is known as a FROTH COLUMN. The froth column is the distance between the top of the bubbles and the surface of the slurry that the mineral is floating on. Consider stage collector addition to help control dosage. This is a very important distance, if you took a cross section of the froth column the mineral would be distributed through it like this. At the very top of the bubbles the mineral would be of the very finest and the purest, as you descend into the froth the bubbles become smaller, the mineral particles that are on the surface of the bubbles. This will cause the hold- that the collector has on the mineral to become less and less positive. As new bubbles are formed they rise to the surface, the bubbles that hold very little mineralization will capture any collector molecules that has a poor surface contact with particles from … Continue reading Optimum Flotation Reagent Addition Rate (Dosage)