Coarse chalcopyrite recovery in a universal froth flotation machine

摘要

A new froth flotation machine has been developed, known as the NovaCell, which can recover mineral particles over a wide particle size range, from the lower limit of flotation, to an upper limit which depends on the liberation characteristics of the ore. In a single device, the collection of the fines and the coarse particles takes place in separate environments. The finest particles are contacted with bubbles in a high-shear aerator, while the coarse particles are captured by bubbles in the gentle environment in a fluidised bed.