摘要:
本文通过多种分析检测手段对陕西某镍矿的化学成分、矿物组成、矿石粒度以及矿石结构等进行了详细研究.该地镍矿石矿物组成复杂,其中脉石矿物种类较多,主要为滑石、蛇纹石、菱镁矿、白云石、高岭石、石英、角闪石和绿泥石等.镍主要以镍黄铁矿的形式存在.除黄铁矿粒度较粗外,其他矿石矿物粒度较细,增加了选矿难度.另外,矿石中滑石和蛇纹石等脉石矿物可浮性较好,不易与硫化物分离.详细的工艺矿物学研究为陕西某镍矿石选矿工艺的选择和开发提供了理论数据.
关键词:
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镍矿
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黄铁矿
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嵌布粒度
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工艺矿物学
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可浮性
Abstract:
The nickel ore in Shaanxi was studied on technological mineralogy.The features of process mineralogy of nickel ore,including the chemical composition mineral composition particle size of ore and the structure of ore in studied in detail by various means in the paper.The nickel ore mineral composition is complex.Many kinds of gangue minerals contains Serpentine,talc,magnesite,dolomite,kaolinite,quartz,amphibole and chlorite and so on.Nickel mainly exists in the form of nickel pyrite.It is difficult for mineral separation because other mineral size is fine in addition to pyrite coarse grain size.It does not separate easily between sulfide ore and Talc and serpentine.It provides the theoretic basis for the choice of mineral processing technique and exploitation of nickel ore in Shanxi.
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