Inorganic Chemicals Industry ›› 2023, Vol. 55 ›› Issue (2): 10-18.doi: 10.19964/j.issn.1006-4990.2022-0100

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of red mud in field of recycled metals and building materials

XU Wenzhen1(),LI Canhua1,2(),JI Hongfeng1,LI Zimu1,WU Zhaoyang1,LI Minghui1   

  1. 1. College of Metallurgical Engineering,Anhui University of Technology,Ma′anshan 243002,China
    2. Xuancheng Industrial Technology Research Institute of Anhui University of Technology Co. ,Ltd. ,Xuancheng 242099,China
  • Received:2022-03-05 Online:2023-02-10 Published:2023-02-16
  • Contact: LI Canhua E-mail:3048402165@qq.com;licanhua1979@163.com

Abstract:

Red mud is the polluting waste residue discharged from the aluminum industry to extract alumina.Improper treatment will cause great harm to the ecological environment.The chemical composition,phase composition and production path of red mud were introduced and the main processes and characteristics of recovering iron,aluminum,titanium,scandium and other metal resources from red mud were analyzed.It was elaborated that adding appropriate amount of red mud could enhance the mechanical properties and fire resistance of building materials,solidify the radioactive elements in red mud,and reduce environmental pollution.In addition,the preparation of geopolymer materials,glass-ceramics,composite materials and other processes were not yet mature.It was still necessary to seek efficient target metal purification technology and efficient and rational disposal method of waste residue and waste liquid,and develop a complete set of red mud development and application process.

Key words: red mud, metal resources, building materials, resource utilization

CLC Number: