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- Title
Progress in Comprehensive Utilization of Acid Leaching Residue of Laterite Nickel Ore.
- Authors
DONG Zaizheng; WEN Guodong; YUAN Shuai; YU Jianwen; ZHANG Shumin; LI Yanjun
- Abstract
In recent years, with the increasing demand for stainless steel and new energy nickel, the wet nickel extraction process from laterite nickel ore has been widely used, and the corresponding acid leaching residue piles of laterite nickel ore has also rapidly increased. It is urgent to scientifically consume and comprehensively utilize such solid waste. The comprehensive utilization of new technologies and equipment for the high content of sulfur and iron elements in acid leaching slag of laterite nickel ore has important theoretical and practical significance for the sustainable development of the laterite nickel ore wet metallurgical industry. The hydrometallurgical formation process, composition, and physical and chemical properties of laterite nickel ore acid leaching residue has been introduced. A systematic review was conducted on the direct treatment methods of laterite nickel ore acid leaching residue in tailings dam accumulation, underground pressure filtration backfilling, and deep-sea landfill. Valuable metal resources such as iron, chromium, aluminum, and rare earths were extracted and utilized, and the research progress in the comprehensive utilization technology for building materials such as diatomaceous earth, ceramic particles, and mineral fibers as well as the consumption in preparation of high value-added materials such as lithium battery electrodes and zeolites. It also looks forward to the development prospects of fluidized reduction roasting technology and equipment in reducing sulfur and improving iron content of laterite nickel ore acid leaching residue.
- Subjects
LATERITE; NICKEL ores; LEACHING; DIATOMACEOUS earth; ROASTING (Metallurgy); BACTERIAL leaching; IRON; RARE earth oxides; SLAG
- Publication
Nonferrous Metals (Mineral Processing Section), 2024, Issue 5, p14
- ISSN
1671-9492
- Publication type
Article
- DOI
10.3969/j.issn.1671-9492.2024.05.002