Venturi Flotation Column Design for Selective Recovery of Pb and Zn from Fe Using Corn Starch under Controlled pH Conditions

Froth flotation is a key technique for the selective beneficiation of sulfide ores, particularly in separating galena (PbS) and sphalerite (ZnS) from pyrite (FeS2). However, conventional depressants such as sodium cyanide pose environmental and safe