Recovery of Iron Ore Tailings byColumn Flotation
accounted for a increase in the content of iron and a con siderable reduction in the SiO2 content in the iron con centrate, while the recovery of the mass and of Fe fell. It is important to add a depressant agent to the iron mi nerals in the iron ore reverse flotation. In this work, corn starch and CMC (carboxymethylcellulose) were used.