Abstract: Red mud is one of the typical industrial solid wastes, and due to its high alkalinity and potential environmental and social issues during storage or landfill, the industry urgently needs to explore the path of resource utilization of red mud. This article summarizes the research results on the resource utilization of red mud both domestically and internationally: (1) recovering valuable metals such as scandium, titanium, aluminum, etc. from red mud, using methods such as direct physical separation and reduced magnetic separation; (2) Using red mud to prepare building materials, such as road base materials, cement, and asphalt; (3) Using red mud for environmental protection, such as absorbing heavy metal ions and radioactive substances from wastewater, treating waste gases such as SO₂, CO₂, and sulfuric acid mist in the atmosphere, and adsorbing heavy metal ions from soil. Summarized and analyzed the characteristics of different recycling and utilization technologies for red mud, pointed out some of the problems, and put forward some suggestions. The future direction of resource utilization of red mud has been clarified, and scientific research should be carried out with the goal of reducing, harmless, and industrialized utilization of red mud.

Key words: Red Mud, Comprehensive Utilization, Metal Recycling, Building Materials, Environmental Protection