However, the trace elements content in iron and steelmaking solid wastes (Oliveira and Bagatini, 2019) must become another barrier to recycling them, and the understanding of trace elements emissions in the sintering process to be even more complex. Finally, the use of iron ore ultrafine in iron ore sintering makes the granulation step ...
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Iron ore is the main responsible material for emissions of trace elements during sintering as it undergoes a series of physicochemical transformations throughout the process.
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Iron ore sintering is the main process of fines agglomeration for ironmaking with relevant particulate matter and trace element emissions of integrated steel plants. Due to the high environmental and human health impacts caused by trace elements, legislations are becoming more stringent for regulating emissions of the trace elements.
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2016-4-1 In this study, chemical characterization of several sintering inputs in an iron ore sinter plant was performed. The steel-making residues contained the highest concentrations of trace elements (1680.1 ppm), reaching more than twice the concentration of the
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2017-2-12 of iron ore, fuels, fluxes, and steel-making residues. In this paper, for the first time, chemical characterization of trace elements in various sintering inputs was performed, and the intake of these elements in a sintering pilot was then analyzed using a sintering mixture. The mass balance was then considered to determine the theoretical ...
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This study presents an evaluation of arsenic and other trace metals in the Hrazdan Iron-Ore project in Armenia using a methodology typically associated with Geometallurgical characterization. The principal host of the trace elements is pyrite and oxidized equivalents. Pyrite is a mineral of elemental concern as it has the potential to generate acidic pH in water that it contacts and thus ...
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2020-10-20 After release from the iron ore particles, the volatilised trace elements may be attached to fine particles carried in the gas flow or enter the waste liquid effluent (Kan et al., 2015). 4. Conclusions. In this work, a goethite iron ore sample was processed under H 2 atmosphere at different final temperatures of 200, 500 and 1000 °C ...
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Now low-grade iron ore were widely used. However, one prominent problem is that the content of trace elements is higher than that in high quality iron ore. For the requirement of the content of Mn, Cr, Ni, Cu, and Ti in hot-rolled steel sheet and strip, the upper limits
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2019-3-23 The Zhonggu orefield is located within the southern Ningwu volcanic basin and is one of the largest iron ore districts within the Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) of eastern China. The area hosts the Gushan iron oxide–apatite (IOA) deposit and the Baixiangshan, Longshan, Hemushan, Zhongjiu, and Taipingshan skarn-type iron deposits. Here, we employ laser ablation ...
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2014-6-10 We have characterized the distribution of 25 trace elements in magnetite (Mg, Al, Si, P, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, Y, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb), using laser ablation ICP-MS and electron microprobe, from a variety of magmatic and hydrothermal ore-forming environments and compared them with data from the literature. We propose a new multielement diagram, normalized ...
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Iron ore sintering is the main process of fines agglomeration for ironmaking with relevant particulate matter and trace element emissions of integrated steel plants. Due to the high environmental and human health impacts caused by trace elements, legislations are becoming more stringent for regulating emissions of the trace elements.
Read More
2019-3-23 The Zhonggu orefield is located within the southern Ningwu volcanic basin and is one of the largest iron ore districts within the Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) of eastern China. The area hosts the Gushan iron oxide–apatite (IOA) deposit and the Baixiangshan, Longshan, Hemushan, Zhongjiu, and Taipingshan skarn-type iron deposits. Here, we employ laser ablation ...
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2014-6-10 We have characterized the distribution of 25 trace elements in magnetite (Mg, Al, Si, P, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu, Zn, Ga, Ge, Y, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb), using laser ablation ICP-MS and electron microprobe, from a variety of magmatic and hydrothermal ore-forming environments and compared them with data from the literature. We propose a new multielement diagram, normalized ...
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This study presents an evaluation of arsenic and other trace metals in the Hrazdan Iron-Ore project in Armenia using a methodology typically associated with Geometallurgical characterization. The principal host of the trace elements is pyrite and oxidized equivalents. Pyrite is a mineral of elemental concern as it has the potential to generate acidic pH in water that it contacts and thus ...
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Here we report new major, trace and PGE geochemical data from the ~ 3.4 Ga Iron Ore Group (IOG) volcanic rocks of the Jamda-Koira basin, a part of the BIF-bearing volcano-sedimentary sequences of the Noamundi-Jamda-Koira iron ore basin in the western part of Singhbhum Granite (SBG), and ~ 2.25 Ga metavolcanic rocks of Malangtoli. The IOG and ...
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2017-2-12 of iron ore, fuels, fluxes, and steel-making residues. In this paper, for the first time, chemical characterization of trace elements in various sintering inputs was performed, and the intake of these elements in a sintering pilot was then analyzed using a sintering mixture. The mass balance was then considered to determine the theoretical ...
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2011-8-26 Iron-ore samples from two of the mines that supplied ore to Hopewell Furnace were analyzed for trace metals. Most of the ore samples contained concentrations of arsenic, cobalt, copper, iron, lead, manganese, nickel, vanadium, and zinc that are typical of local iron ore but higher than the average concentrations found in most rocks.
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Total concentrations combined with chemical partitioning of trace elements (Cd, Co, Cr, Mn, Ni, Pb, Tl, and Zn) in raw pyrite ore and solid roasting wastes were investigated in order to elucidate their transformations and partitioning during the roasting of raw pyrite ores in sulfuric acid production.
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2008-8-15 Mining and associated smelting and metal processing activities have led to perturbations in the cycling of metals in the surface environment. In this context, iron-ore mines act as important sources of major metals, mainly Fe and Mn, but also associated trace metals into the environment (Ratha and Venkataraman 1995; Wong 1981; Zabowski et al. 2001).
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2021-3-2 Trace amounts of Cerium can act as a catalyst by enhancing fluid-mediated magnetite alteration, which preconditions ore systems and could contribute to the
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Iron ore sintering is the main process of fines agglomeration for ironmaking with relevant particulate matter and trace element emissions of integrated steel plants. Due to the high environmental and human health impacts caused by trace elements, legislations are becoming more stringent for regulating emissions of the trace elements.
Read More
2017-2-12 of iron ore, fuels, fluxes, and steel-making residues. In this paper, for the first time, chemical characterization of trace elements in various sintering inputs was performed, and the intake of these elements in a sintering pilot was then analyzed using a sintering mixture. The mass balance was then considered to determine the theoretical ...
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Trace elements in iron and steel certified reference materials, JSS 002-3 (Pure Iron), JSS 003-2 (Pure Iron) and JSS 814-1 (Iron Ore), prepared by the Iron and Steel Institute of Japan were ...
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2011-8-26 Iron-ore samples from two of the mines that supplied ore to Hopewell Furnace were analyzed for trace metals. Most of the ore samples contained concentrations of arsenic, cobalt, copper, iron, lead, manganese, nickel, vanadium, and zinc that are typical of local iron ore but higher than the average concentrations found in most rocks.
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2016-2-1 PDF Environmental legislation is becoming more restrictive in several industrial sectors, especially in the steel industry, which is well known for... Find, read and cite all the research you ...
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2019-3-23 The Zhonggu orefield is located within the southern Ningwu volcanic basin and is one of the largest iron ore districts within the Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) of eastern China. The area hosts the Gushan iron oxide–apatite (IOA) deposit and the Baixiangshan, Longshan, Hemushan, Zhongjiu, and Taipingshan skarn-type iron deposits. Here, we employ laser ablation ...
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2012-8-16 The iron ore associated with dolomitic itabirite use to have high LOI (as carbonate) and CaO, very low amount of silica and alumina where as those ... low amount, in few tens of ppm, of trace elements. But there is a variation in the silica alumina content because of their mineralogical association and the mineral chemistry.
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2008-8-15 Mining and associated smelting and metal processing activities have led to perturbations in the cycling of metals in the surface environment. In this context, iron-ore mines act as important sources of major metals, mainly Fe and Mn, but also associated trace metals into the environment (Ratha and Venkataraman 1995; Wong 1981; Zabowski et al. 2001).
Read More
2021-3-2 Trace amounts of Cerium can act as a catalyst by enhancing fluid-mediated magnetite alteration, which preconditions ore systems and could contribute to the
Read More
2021-11-10 赵葵东,赵葵东 中文主页,中国地质大学（武汉）教师个人主页系统,赵葵东，男，2000年南京大学地球科学系地质学基地班本科毕业，2005年获南京大学地球科学系矿床学博士学位。2005年7月任南京大学地球科学系矿床学专...
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