Activation Behavior and Mechanism of Sodium Sulfate for Iron Recovery from Red Mud through Magnetization Roasting–Magnetic Separation. - Liu, Mingxia; Yao, Zhaohui; Hu, Chaojie; Xu, Kang; Wang, Ruixu; Zhang, Hanquan (JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2024)