摘要
采用显微镜观察、X射线衍射分析和扫描电镜能谱分析等手段研究元江镍矿的矿物组成,并对矿石中有价金属的浸出反应进行热力学分析。结果表明,元江镍矿是蛇纹岩风化形成的硅酸镍矿,主要矿物组成为含镍蛇纹石、针铁矿、石英、磁铁矿以及少量的辉石、滑石和赤铁矿等,各矿物间关系密切。元江镍矿的浸出过程比较复杂,矿石中主要矿物的浸出反应很容易进行,并且有价金属浸出比较完全。
The mineral composition of the Mg-rich laterite from the Yuanjiang region, Yunnan of China, is investigated by means of microscopic examination, X-ray diffraction（XRD） and Scanning electron microscope （SEM） study. And the thermodynamics of leaching process is analyzed. The results show that the major minerals in the laterite are serpentine, goethite, quartz, magnetite and less of enstatite, talcum, kaolinite, hematite and so on. These minerals are closely related. The leaching reactions of the laterite would be thermodynamically easy and completed, even though the leaching process of the laterite is complicated.
出处
《有色金属》
CSCD
北大核心
2008年第3期84-87,共4页
Nonferrous Metals
基金
国家自然科学基金资助项目(50674014)
国家高技术发展研究计划项目(2006AA06Z131)
国家973计划项目(2007CB613505)
关键词
冶金技术
高镁红土矿
矿物组成
浸出热力学
metallurgical technology
Mg-rich laterite
mineral composition
leaching thermodynamics
