化工进展2026，Vol.45Issue(4)：2379-2391,13.DOI:10.16085/j.issn.1000-6613.2025-0616
红土镍矿还原焙烧技术研究进展
Progress on reduction roasting technology of laterite
摘要
Abstract
With the surge in demand for nickel resources,the efficient smelting technology of laterite has become the focus of research.Reduction roasting,as a key link in the pyrometallurgical smelting of laterite,can reduce nickel and iron oxides in the ore to metal or low-valence oxides,creating conditions for subsequent separation and purification.However,there are still some problems in this process,such as high energy consumption,low reduction efficiency and insufficient adaptability to complex mineral composition.In this paper,the reduction roasting technology of laterite was taken as the research object.From the perspective of thermodynamics and kinetics,the phase change and reaction law in the reduction roasting process of laterite were deeply analyzed,and the reaction mechanism and speed control steps in each stage of the reduction roasting process were clarified.On this basis,this paper compared and analyzed the smelting processes of laterite such as direct reduction roasting in rotary kiln,rotary klin-electric furnace,reduction roasting-magnetic separation and reduction roasting-ammonia leaching,and discussed the advantages and limitations of each process.It was prospected that the future development direction of laterite smelting technology should focus on the innovative breakthrough of the combined process of fire and humidity,and realize low energy consumption,low emission and synergistic extraction of nickel and cobalt through the coupling of low temperature reduction and leaching process.关键词
镍资源/红土镍矿/还原焙烧/火法提镍/镍钴协同提取Key words
nickel resources/laterite/reduction roasting/pyrometallurgical extraction of nickel/synergistic extraction of nickel and cobalt分类
资源环境引用本文复制引用
孙金洋,郑晓洪,孙峙,王海娟..红土镍矿还原焙烧技术研究进展[J].化工进展,2026,45(4):2379-2391,13.基金项目
中国科学院战略性先导科技专项(XDA0430304) （XDA0430304）
中国科学院青年基础研究项目(YSBR-044) （YSBR-044）
中国科学院化学化工科学数据中心能力建设项目(WX145XQ07-12). （WX145XQ07-12）
