Summary of Research Progress on Metallurgical Utilization Technology of Red Mud

Red mud is a highly alkaline solid waste discharged in the alumina production process. Because of its large amount discharge and high alkalinity, it mostly stored dams, occupying number land resources posing great safety hazard to ecological environment. The large-scale consumption red global technical problem. Different processes will produce different types mud, mainly Bayer process mud. In addition overall utilization field building materials, agriculture, environment, chemical industry, also contains valuable metal elements, such as titanium, iron, scandium, aluminum, an important secondary mineral resource. This paper focuses on principle characteristics metallurgical treatment for extraction components looks forward prospect large-scale, harmless, high-value comprehensive technology China.