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. Key words: laterite nickel slag; ammonium sulfate; roasting; nickel laterite ore 镍是一种重要的战略金属,具有优良的物理化学性质,被广泛应用于军工,机械,医疗等领域[1-2].近年来,随着红土镍矿火法冶炼镍铁合金规模逐步扩大,红土镍矿冶炼镍铁废渣(简称镍铁渣)的排放量逐渐增多.2015年,镍铁渣的总排放量将接近1亿t... ferronickel slag inorganic polymers[J]. Journal of Hazardous Materials, 2009, 161(2/3): 760-768. [7] BODAS M G, AKERKAR D D. Extraction of nickel and cobalt from over-burden sample of chromite ore mines......
on them in recent years. Leaching zinc sulphide concentrate by concentrate ammonium chloride has been used in industry[6]. YANG et al[7] researched the treatment of zinc oxide ore for producing zinc...J. Cent. South Univ. Technol. (2008) 15: 679-683 DOI: 10.1007/s11771-008-0126-4 Leaching kinetics of low grade zinc oxide ore in NH3-NH4Cl-H2O system WANG Rui-xiang(王瑞祥)1, 2, TANG Mo-tang(唐谟堂)1......
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J. Cent. South Univ. Technol. (2011) 18: 381-385 DOI: 10.1007/s11771-011-0707-5 Effect of L-cysteine on bioleaching of Ni-Cu sulphide by A. manzaensis HE Zhi-guo(贺治国)1, 2, ZHAO Jian-cun(赵健存)1, 2... microscope. The content levels of copper and nickel in solution were analyzed by atomic absorption spectrophotometry. Zeta potential determination and IR spectra observations were adopted to show the effect......
) for significance was undertaken. 2 Materials and methods 2.1 Ore sample A complex zinc/lead/silver sulphide ore sample from the McArthur River deposit, Northern Territory of Australia was used in this study. Mineralogical and chemical analyses have shown that the ore sample contains sphalerite (ZnS), galena (PbS) and pyrite (FeS2) as the major sulphide phases with a chemical composition......
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A novel process for sorting fine-sized sulphide minerals by biocoagulation H. Z. KUYUMCU, J. PINKA, T. BIELIG Department of Mechanical Process Engineering and Solids Processing... substances, as well as their influence on the selective biocoagulation were studied. Experimental investigations show that the microorganisms and the sulphide particles below 10 ?m coagulate effectively......
acid[5-7] and high pressure acid leaching[8-10]. High pressure acid leaching is the main process for industrial production of nickel and cobalt with lateritic ore, but it is applicable only... was subjected to acid digestion and analyzed by atomic absorption spectrophotometer (AAS, maker: Rayleigh, China) and the ore contains 1.11% nickel. Iron was analyzed by standard volumetric method and the ore......
of particle and electrode. The flotation meaning of applying charge transfer models of electrochemistry reaction taking place on mineral particle′s surface to different sulphide ore flotation process was discussed. The results show that when the electrochemistry reaction takes place on the surface of sulphide ore, the transfer of reacting charge is related to mineral property, mineral surface character......
the reduction of iron oxide in the selective reduction process of laterite nickel ore. FeS generated in the process plays an important role in selective reduction, but the generation process of FeS...Generation process of FeS and its inhibition mechanism on iron mineral reduction in selective direct reduction of laterite nickel oreZhi-guo Liu,Ti-chang Sun,Xiao-ping Wang,En-xia GaoSchool of Civil......
