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| 金川低品位镍矿石工艺矿物学特性研究 | |
| 引用本文： | 廖乾,冯其明,欧乐明,卢毅屏,张国范,曹佳宏.金川低品位镍矿石工艺矿物学特性研究[J].矿物岩石,2011,31(1). |
| 作者姓名： | 廖乾 冯其明 欧乐明 卢毅屏 张国范 曹佳宏 |
| 作者单位： | 1. 中南大学资源加工与生物工程学院,湖南长沙410083;长沙矿冶研究院,湖南长沙410012 2. 中南大学资源加工与生物工程学院,湖南长沙,410083 3. 长沙矿冶研究院,湖南长沙,410012 |
| 基金项目： | 国家重点基础研究发展计划973计划(2007CB613602) |
| 摘 要： | 金川低品位镍矿石属发生较强烈氧化的难处理型镍资源,矿石中镍的品位为0.51%,主要以紫硫镍矿形式存在。紫硫镍矿由磁黄铁矿、黄铁矿蚀变而来,呈现铁高、硫低、镍低的特点,选矿中可浮性较差。主要矿物的工艺嵌布粒度统计分析表明,矿石中镍矿物和黄铜矿均属微细粒嵌布的范畴,磁铁矿则具不均匀细粒嵌布的特点。单纯从粒度分布特征来看,选矿中欲使90%以上的镍矿物获得解离,以选择-0.026 mm的磨矿细度较为适宜,此时-600目部分约占95%左右。与磁铁矿嵌连关系密切的紫硫镍矿占其总量的95%以上,选矿过程中要提高镍的回收率,必须尽可能多地回收磁铁矿。矿石中脉石矿物主要为蛇纹石与绿泥石,易泥化,减少和消除脉石矿物对选别的影响至关重要。 |
| 关 键 词： | 金川 低品位镍矿 工艺矿物学 |
PROCESS MINERALOGY FOR A LOW GRADE NICKEL ORE IN JINCHUAN |
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| LIAO Qian,FENG Qi-ming,OU Le-ming,LU Yi-ping,ZHANG Guo-fan,CAO Jia-hong.PROCESS MINERALOGY FOR A LOW GRADE NICKEL ORE IN JINCHUAN[J].Journal of Mineralogy and Petrology,2011,31(1). | |
| Authors: | LIAO Qian FENG Qi-ming OU Le-ming LU Yi-ping ZHANG Guo-fan CAO Jia-hong |
| Institution: | LIAO Qian1,FENG Qi-ming1,OU Le-ming1,LU Yi-ping1,ZHANG Guo-fan1,CAO Jia-hong2(1.School of Resources Processing and Bio-engineering,Central South University,Changsha 410083,China,2.Changsha Research Institute of Mining and Metallurgy,Changsha 410012,China) |
| Abstract: | A low grade nickel ore(0.51%) in the Jinchuan County was strongly oxidized and difficult in processing.Violarite,the main existing nickel species,alternated from pyrrolithe or pyrite,emerged high proportion of iron and low sulfur and nickel concentration,was of poor float ability.The statistical disseminated grain size analysis of the main minerals proved that the nickel ore minerals and the chalcopyrite belonged to the category of the micro granular embedded,when the magnetite was unevenly disseminated.Acc... |
| Keywords: | Jinchuan low grade nickel ore process mineralogy |
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