New Technology of Zinc Oxide Concentrate Flotation + Mechanical Stirring Defoaming Zinc Leaching

During the acidic leaching of flotation zinc oxide concentrates, CO2 released from carbonate decomposition generates viscous foams that disrupt process stability. This study introduces an innovative synergistic defoaming process combining air flotation and mechanical methods. Fine air bubbles destabilize the foam, while mechanical defoaming enhances the removal of residual bubbles. The results indicate that the defoaming process combining air flotation with mechanical stirring effectively reduces foam generation during the acid leaching of zinc oxide concentrates, enhances leaching efficiency, and improves process stability. This method provides an effective solution for foam control and offers a new approach for the treatment of zinc oxide concentrates.