Abstract: There is still some ilmenite in the tailing of the secondary high intensity magnetic separation in Heshan Titanium Concentrator, Cheng Steel. To reduce the resource waste, test is made on the titanium recovery from this tailing. The results show that a rough concentrate with a TiO₂ grade of 32.12% and TiO₂ recovery of 38.02% can be obtained by adopting a single gravity separation process consisting of roughing by spiral sluice and cleaning by tabling, which can be sold as blast furnace burden. The combined flowsheet consisting of roughing by spiral sluice, cleaning by tabling, sulphur flotation and titanium flotation can obtain a qualified titanium concentrate with a TiO₂ grade of 47% and meantime a sulphur concentrate as a byproduct that has S grade of above 39%.

Key words: Tailing of high intensity magnetic separation, Ilmenite, Gravity separation, Flotation, Rough titanium concentrate, Titanium concentrate