Research of Cleaner Production of Alumina and Harmless Utilization of Red Mud

The Bayer processBayer process is the primary technology utilized for aluminaAlumina production but it is limited by its stringent requirements on the quality of the bauxiteBauxite raw material. Due to the absence of a reasonable and effective large-scale utilization methodMethod, a substantial amount of high-alkali red mudRed mud generated from the process is kept in storage yards, occupying significant land space and posing grave threats to both the environment and human health. Based on prior research, this paper comprehensively summarizes and scrutinizes the current state of aluminaAlumina production as well as the management of red mudRed mud. Commencing with the phase structure of aluminaAlumina production, this paper delves into the development of the Bayer processBayer process and the Calcification-carbonization methodMethod. The aforementioned approaches offer pioneering concepts for promoting sustainable development within the aluminaAlumina industry.