Al-Dhubaibi, Ammar Mahdi AhmedVapur, HuseyinTop, SonerSivrikaya, Osman2025-01-062025-01-0620230272-63511548-004610.1080/02726351.2022.21411632-s2.0-85141390796https://doi.org/10.1080/02726351.2022.2141163https://hdl.handle.net/20.500.14669/2634Despite the difficulties in pelletizing specularite-type refractory iron ores, the utilization of these resources is indispensable for the steel industry due to the increasing need for iron. This study investigated Fe recovery from a refractory iron ore using gravity separation, reverse flotation, and two-stage magnetic separation. Tilt angle and particle size had a significant effect on the grade and recovery of concentrates in shaking table tests. Gravity concentration at optimum conditions resulted in an iron concentrate with 64.47% Fe grade and 90.73% Fe recovery. In the reverse flotation tests, the frother and depressant substantially affected the Fe grade of concentrates while the collector influenced the Fe recovery. A 90% Fe recovery with 64.69% Fe grade was obtained within optimum flotation conditions. The Fe grades were raised to >67.5% in products after the first magnetic separation. The tailings of the first magnetic separation were subjected to the second magnetic separation after microwave-assisted roasting to increase the magnetic susceptibility. In the second magnetic separation, a concentrate containing 66.06% Fe was separated from the microwave-roasted non-magnetic material with 82.23% Fe recovery. To the best of our knowledge, the microwave-roasting method has been applied to a specularite-type refractory iron ore for the first time.eninfo:eu-repo/semantics/closedAccessIron oreshaking tableflotationmagnetic separationupgradeArticle7605Q274941WOS:000878537300001Q3