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攀枝花某地钒钛磁铁矿选矿基础试验研究李亮1,杨成1(1.四川省攀枝花市攀枝花学院 四川钒钛材料工程技术研究中心)摘 要:通过激光显微光谱分析,光谱半定量分析和电子探针定量分析等手段,对攀枝花某地钒钛磁铁矿的化学成分,物相组成和有益元素的赋存状态进行了详细的研究,根据该钒钛磁铁矿的成分及物相特点,制定了适宜的选矿方案:原矿经破碎,一段闭路磨矿,进行二次磁选,一次扫选获得钒铁精矿;从磁选尾矿中回收粒状钛铁矿,分选工艺流程为:溜槽与螺旋选矿-浮选(硫化矿物)-电选流程.在实验室条件下,进行了选矿基础试验研究,试验表明......
辽宁夹山金铜矿区金的赋存状态研究徐万臣1,牛娜1,张明仁1(1.辽宁省沈阳市辽宁省地质矿产研究院)摘 要:辽宁夹山金铜矿区物质组分和金的赋存状态研究结果表明,矿石的主要金属矿物有黄铁矿,黄铜矿,方铅矿,闪锌矿,银金矿,自然金等,这种典型矿物组合可作为寻找和评价金矿床的找矿矿物学标志.金矿物的形态以不规则状为主,且粒度细小;金的成色平均为744.金的赋存状态有明金,显微金(裂隙金,晶隙金和包体金)和超显微金,以显微金为主,裂隙金,晶隙金和包体金赋存于黄铁矿,黄铜矿等矿物中,金与黄铁矿关系密切,黄铁矿是金的主要载体......
of China were produced after flotation. The chemical compositions are listed in Table 1. The granularity distribution of the fine grinding ore is listed in Table 2. Above 60% chalcopyrite granularity... and composition of chalcopyrite concentrate (mass fraction, %) Table 2 Granularity distributions of chalcopyrite concentrate (mass fraction, %) Fig. 1 XRD pattern of primary chalcopyrite ore 2.3 Microorganism......
between tensile ductility and fracture toughness of the SiC particle reinforced aluminum alloy composites with the microstructures, such as volume fraction and granularity of the SiC particles. It was shown by the models[7-13] that the mechanical properties (including both the strength and plasticity) of the composites depend a lot on the volume fraction and granularity of the SiC particles......
material. The experimental results show that increasing the loose density of HDH powder can decrease the porosity ratio when the appearance and granularity of the powder particles remain unchangeable... appearance, granularity, granularity distribution, dense degree of particles and so on. Since the appearance and granularity of the powder particles remain constant, the numerical values of loose......
; the shape of particle, the particle size and the granularity being controllable; nanocrystalline not becoming together; easily collecting; good stability and high productivity. The study on the solid state... advantages are operating conveniently, easily controlled granularity and less pollution. It also could avoid or reduce the phenomenon of hard gathering and particle gathering caused by middle step......
particle analyzer was used to analyze the particle size distribution of the slag. The content of granularity which was lower than 74 μm in samples was defined as the self-disintegrating ratio. 3... characteristic of calcium aluminate slags. Slags with different MgO and Na2O contents were cooled slowly and then well-mixed in order to analyze the granularity of the slag. The particle size results......
size R always slacks to Ni particles with granularity size of 1/ki of its own size, that is to say, the slacked rock materials have the grain size of , with the count numbers of particle of {N1, N2... is a fragment with granularity of the needed time for the fragment with size to slack continuously is Tn+1. The hypothetic relationship between Tn+1 and meeting the following equation......
the granularity distribution curves of the alloy powders which are stripped out from the MH electrode after 500 cycles using ultrasonic vibrations. The granularity distribution curve of the alloy powders from the unmodified electrode shifts to lower granularity region compared with the alloy powders from the modified electrode. The mean particle size of the modified and unmodified electrode are 17.28 μm......
. Table 3 and Table 4 list the chemical phase analysis result of silver and the granularity distribution of the concentrate, respectively. As listed in Table 3, most of silver occurs in tetrahedrite... concentrates (mass fraction, %) Table 3 Chemical phase analysis result of Ag in Gacun complex Cu concentrate Table 4 Granularity distribution of Gacun complex Cu concentrate (volume fraction, %) 2.2......
