Investigation of Mineral Phase Transformation Technology Followed by Magnetic Separation for Recovery of Iron Values from Red Mud

Experiments were conducted to investigate the mineral phase transformation technology of high-iron red mud, effectively extracting valuable iron minerals and reducing hazards associated with mud stockpiling storage. A magnetic concentrate an grade 55.84% recovery 93.75% could be obtained at a roasting temperature 560 °C, time 15 min, CO concentration 20% total gas flow 500 mL/min. combination XRD SEM-EDS analysis was employed evaluate during process. ToF-SIMS applied assess occurrence state various elements mud.