The reduction of the prepared nickel laterite ore by H2 was carried out in a fluidised-bed reactor with provisions for temperature and agitation control, and the magnetic separation of the reduced ...
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An assumption was made on the segregation mechanism of nickel from garnierite ore in the previous paper. In this work, the assumption was confirmed by experimental data by using same process for extraction of nickel by XMA, electron beam scanning microscope and chemical analysis of the concentrates obtained. Fine ferronickel powder having very high nickel content …
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grade nickel laterite ore containing a nickel content of 1.92%. Nickel and iron recoveries were 96.72 and 89.08% respectively, ... by physical beneficiation via magnetic separation on laterite * Zhenggen Liu [email protected] * Mansheng Chu [email protected] 1 School of Metallurgy, Northeastern University, Shenyang 110819, China
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Excellent performance on even weakly magnetic materials, high magnetic field intensity, middling splitter setting are the key feature of WHIMS (Das and Roy, 2007). A slurry …
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The main finding of this work was that magnetic separation is effective in recovering 48% of nickel from laterite, increasing the Ni grade in the recovered product from 1.5% to 2.9%, when prior to ...
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The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron concentrates with nickel grade of 6.96% ...
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Keywords: laterites; ore reduction; magnetic separation; thermodynamics; fine particle metallurgy 1. Introduction According to the survey report of the United States Geo-logical Survey (USGS), approximately 60% of nickel re-sources in the Earth's crust are in the form of nickel laterite ore, and the rest belongs to nickel-bearing sulfide ore [1].
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Keywords Laterite nickel ore · Magnetic separation tailings · Sulfuric acid leaching · Neutralization hydrolysis · Magnesium oxide. 372 Journal of Sustainable Metallurgy (2022) 8:370–385 1 3 Introduction Magnesium is an alkaline earth metal, and magnesium oxide is its alkali metal oxide. It is tasteless, nontoxic
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Nickel is widely used in industrial processes and plays a crucial role in many applications. However, most of the nickel resource mainly exists as nickel oxide in laterite nickel ore with complex composition, resulting in …
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Process mineralogy of low-grade laterite nickel ore in Indonesia was systematically characterized and the beneficiation process of mineral components such as limonite, serpentine and chromite was studied on the basis of process mineralogy. The results show that the low-grade laterite nickel ore is a typical weathering sedimentary metamorphic …
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mineral phases of laterite nickel ore are limonite, serpentine, chlorite, quartz, chromite and magnetite. In order to further study the beneficiability of laterite nickel ore, it is necessary to analyze the mineralogical characteristics of its main minerals by modern analytical means such as Table 1 Chemical composition of laterite nickel ore ...
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In this study, high-grade ferronickel concentrates were obtained through a carbothermal reduction and magnetic separation using laterite nickel ore and anthracite as raw materials. The effects of different types of additives (CaF2, Na2SO4 and H3BO3), carbon ratio (nc/no in metal oxides) and grinding time on the recoveries and grades of ...
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The nickel laterite in upper layer of the ore deposit, with higher content of iron (Fe) and lower content of silica (SiO 2) and magnesium (Mg) in general, belongs to the limonite type, and usually contains lower nickel of about 1%, but a certain amount of cobalt (Co), while the nickel laterite in lower layer of the ore deposit, with higher content of silica (SiO 2) and …
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(a) Reaction mechanism of natural gas and laterite nickel ore(He et al., 2024); (b) SEM–EDS Map of nickel laterite ore reduction roasting under optimal reduction conditions(He et al., 2024); (c) XRD patterns of HL oxide ore roasted at 1200 °C (A with NaCl; B without NaCl)(Zhou et al., 2016); (d) SEM images of HL oxide ore with NaCl roasted ...
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Considering on the low grade of nickel and iron in laterite nickel ore, solid-state reduction roasting combined with magnetic separation to remove the magnesium silicates …
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12224 j mater res technol. 2020;9(6):12223–12235 1. Introduction In general, increasing attention has been paid to laterite ores as an alternative to nickel sulfide ore [1–5].
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Corpus ID: 139473766; Study on selective reduction and magnetic separation of low-grade nickel laterite ore to produce high nickel concentrate @inproceedings{Li2010StudyOS, title={Study on selective reduction and magnetic separation of low-grade nickel laterite ore to produce high nickel concentrate}, author={Q. Li and Yu Cui and D. Zhu and J. Zhu and Jilong …
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This was achieved by heating the nickel slag to a temperature of 1550 °C in an electric furnace, utilizing powdered coal as the reducing agent, and incorporating lime. Besides …
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the Reduction of Laterite Nickel Ore Zhi Feng1,2 · Bo Li1,2 · Yonggang Wei 1,2 · Shiwei Zhou 1,2 ... magnetic separation of laterite nickel ore, the main inuencing factors include the roasting temperature, holding time, type ... to form large particles of ferronickel alloy and obtain good separation between ferronickel particles and slag ...
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Improved magnetic separation techniques similar to a Wet High Intensity Magnetic Separator or a Davis Tube Tester could lead to improved separation of the …
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Pre-concentration of nickel in laterite ores using physical separation methods Saeed Farrokhpay1*, Lev Filippov1, Daniel Fornasiero1,2 1 Université de Lorraine, GeoRessources, CNRS, UMR 7359, F-54505 Vandoeuvre- lès-Nancy, France 2 Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia (*Corresponding author: …
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In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO2 …
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The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride ...
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Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed using hydrogen and carbon monoxide as reductants at different temperatures (700–1000°C). Magnetic separation of the reduced products was conducted using a SLon-100 cycle pulsating magnetic separator …
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A schematic diagram of the Cycle of magnetic separation used in the current work is shown in Fig. 10. It was found that the Weda Bay laterite ore has about 8% magnetic part (magnetite, Fe 3 O 4) with no (or very minimal) nickel content. The result of SEM and EDS analysis revealed that the ferro-magnetic part of the ore sample contains 97.3% FeO.
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In this paper, a research on preparing ferro-nickel alloy from low-grade saprolitic laterite nickel ore using metallized reduction-magnetic separation was studied. In the …
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Nickel is widely used in industrial processes and plays a crucial role in many applications. However, most of the nickel resource mainly exists as nickel oxide in laterite nickel ore with complex composition, resulting in difficulty in upgrading the nickel content using physical separation methods. …
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Reduction roasting–magnetic separation technology has been extensively applied to the extraction of nickel from laterite nickel ores with low nickel content due to its short …
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DOI: 10.1016/j.mineng.2023.108194 Corpus ID: 259620999; Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting-magnetic separation using spent cathode carbon
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The reduction of the prepared nickel laterite ore by H2 was carried out in a fluidised-bed reactor with provisions for temperature and agitation control, and the magnetic separation of the reduced ...
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