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镍-铜硫化矿床一般产在铁质镁和超铁镁质火成岩和侵入岩中。矿物的赋存状态影响硫化矿物的分选效率。粗粒矿石通常比较容易处理,但有些矿石在变质作用中已经发生蚀变。浸染状次生矿物常常需要细磨才能使矿物单体解离。然而,细粒蛇纹岩会在浮选工艺中引起麻烦,例如,会增加矿浆黏度。矿物的可浮性还取决于工艺参数。工艺铁常常与矿粒微电池接触,影响硫化矿物的表面反应。工艺水中的氧化作用和溶解离子也是影响浮选工艺的主要因素。
Nickel-copper sulphide deposits are generally found in ferromagmatitic and ultra-magnesitic igneous and intrusive rocks. The occurrence status of minerals affects the separation efficiency of sulfide minerals. Coarse ores are generally easier to process, but some ores have been altered during metamorphism. Dip-like secondary minerals often require fine grinding to dissociate mineral monomers. However, fine-grained serpentinite can cause problems in the flotation process, for example, by increasing the viscosity of the slurry. The flotability of minerals also depends on the process parameters. Process iron is often in contact with the mineral micro-cell, affecting the surface reaction of sulfide minerals. Process water oxidation and dissolved ions are also the main factors affecting the flotation process.