Concentration and Recovery of Valuable Heavy Minerals from Dredged Fine Aggregate Waste

Inside the finest fractions of aggregates, usually wasted by ready mix concrete companies, valuable heavy minerals content is substantial. The concentration and recovery contained in dredged fine aggregates waste, located Pyeongtaek South Korea, were investigated to develop a process that can recover concentrate most each mineral. raw material contains ilmenite, magnetite, monazite, zircon. A gravity separation, recirculating middlings recovered zircon with 44.05%, 36.90%, 53.76%, 69.7% respectively. Nevertheless, magnetic separation followed non-magnetic fraction further improved 86.96%, 85.09%, 91.06%, 90.82% This was separated at different intensities. Magnetite concentrated 0.05 T, resulting 23.4% grade 95.1 wt%. Ilmenite 0.4 55.2% 84.2 Monazite 0.9 59.3% rare earth oxide 45.2%, has high content, 70.6% 91.8