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This study involves the selective recovery of non-ferrous metals (nickel and copper) versus iron, from nickel slag by selective reduction magnetic separation process, with an aim to make high-grade nickel and copper concentrate for producing special steel, i.e. stainless steel or weathering steel [14,15]. 2 Experimental 2.1 Raw …
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Nickel, a valued metal, mainly exists as nickel oxide in laterite nickel ore. Furthermore, a large part of the laterite nickel ore is low-grade saprolitic ore. 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 research, the …
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The target of the current work is to investigate the possibility of nickel recovery from EAF slag by magnetic separation. To meet the target, the effect of the following parameters was studied ...
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Request PDF | Carboxylate coated nickel ferrite nanoparticles for high-gradient magnetic separation | Magnetic separation is a complex physical process in which magnetically susceptible composites ...
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Li et al. (2010) investigated the effects of selective reduction and magnetic separation of nickel laterite ore containing 0.97% nickel to produce a high grade nickel concentrate. With regards to ...
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1.Introduction. Nickel and cobalt, as indispensable elements in synthesizing heat-resisting, hard, anti-corrosion, and magnetic alloys and lithium batteries, are …
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In this paper, the process of solid-state metalized reduction and magnetic separation was investigated for preparation of nickel–iron concentrate from a low-grade laterite nickel ore. The effects of reduction temperature, …
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Nickel is mostly extracted from sulfide ores, however, laterite ores account for over 60 pct of all nickel resources in the world, and despite its predominance, there is no well-established process to extract nickel from such ores. ... The effect of thermal treatment, magnetic separation, the addition of compounds (such as sodium sulfate ...
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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. In this study, high-grade ferronickel concentrates …
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DOI: 10.1016/J.HYDROMET.2015.07.001 Corpus ID: 93613069; Magnetic separation of iron precipitate from nickel sulfate solution by magnetic seeding @article{Han2015MagneticSO, title={Magnetic separation of iron precipitate from nickel sulfate solution by magnetic seeding}, author={Hai-sheng Han and Wei Sun and Yue …
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This study investigated the deep removal of complex nickel from simulated wastewater using magnetic separation and magnetic seed recycling. Nano-magnetite (Fe3O4) was used as the magnetic seed. The flocculant applied was N,N-bis-(dithiocarboxy) ethanediamine (EDTC), a highly efficient heavy metal chelating agent …
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Request PDF | On Jul 17, 2015, Haisheng Han and others published Magnetic separation of iron precipitate from nickel sulfate solution by magnetic seeding | Find, read and cite all the research you ...
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The limonitic nickel laterite ore is beneficiated by the selective reduction roasting-magnetic separation process.. The mechanism of calcium sulfate and silica in promoting selective reduction of limonitic nickel laterite ore was revealed.. Growth behaviors of ferronickel particles in the reduction roasting process are clarified.
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The low-grade nickel laterite ore used in this study was successfully upgraded through selective reduction by industrialized rotary kilns followed by magnetic separation. The results indicated that both iron metallization extent and nickel metallization extent showed obvious linear correlation. In addition, rational roasting temperature and …
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Abstract. The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron …
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Abstract. 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 …
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Synthesis of micron-sized magnetic agarose beads chelated with nickel ions towards the affinity-based separation of histidine-tagged/rich proteins. Author links open overlay panel Ya-Qi Zhao a b 1, ... The magnetic separation process of His-proteins with MAIN is shown in Fig. 6 A. After capturing His-proteins, rinsing nontarget proteins, …
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Based on these findings, potential processing options, such as magnetic separation, gravity separation, and froth flotation, for recovering and upgrading nickel from this concentrate are discussed. …
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The magnetic separation tailings of saprolite laterite ore containing magnesium processed by roasting and magnetic separation are used as raw materials, and the product of magnesium oxide was obtained by the process of sulfuric acid leaching, removing iron, precipitating magnesium and roasting. The effects of sulfuric acid …
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Carboxylate Coated Nickel Ferrite Nanoparticles for High-gradient Magnetic Separation T.M. Trad1, R. Alvarez1, A. Apblett2 and K.S. Martirosyan3 1Department of Chemistry and Environmental Sciences, University of Texas at Brownsville, Brownsville, TX, USA, 78520, [email protected] 2Department of Chemistry, Oklahoma State University, …
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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 (CaF 2, Na 2 SO 4, ...
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Nickel-loaded carbon black (Ni 0-CB) particles showed magnetization response.. The solid–liquid separation via a magnet enabled the recycling of Ni-CBs. • Ni-CB has a weak adsorption capacity to NH 3, beneficial to the ammonia recovery. Ammonia recovery efficiency of Ni-CBs was increased by ~20 % compared with AC.
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This study investigated the deep removal of complex nickel from simulated wastewater using magnetic separation and magnetic seed recycling. Nano-magnetite (Fe3O4) was used as the magnetic seed.
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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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Three models (including magnet arrangements and Nickel layer) are presented to increase the separation efficiency by optimizing the magnetic field. Polystyrene particles with the diameter of 0.2–7 μm and EMG 408 as the ferrofluid have been used in the proposed model.
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Semi-batch pilot scale magnetic separation was performed using wet magnetic drums with different magnetic field strengths. The nickel recovery increased with increasing magnetic field strength for both SC and SF samples (Fig. 1.a, circuits #1).For sample SC, the cumulative nickel recovery ranged from 49.8 % at 1500 G and 65.9 % …
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Magnetic separation of nickel-plating waste liquid using a high temperature superconducting bulk magnet. T Oka 5,1, K Sudo 1, J L Dadiel 1, N Sakai 1, H Seki 1, M Miryala 1, M Murakami 1, T Nakano 2, M Ooizumi 2, K Yokoyama 3 and M Tsujimura 4. ... Figure 7 shows the magnetic separation experiment, which realized the …
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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 …
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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 was used as …
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magnetic nano-particles removed almost of Ni2+ when the initial concentration ranged from 10 to 80 mg/L. To date, however, magnetic flocculation has rarely been …
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In this paper, the reduction roasting-magnetic separation process is used to study the method of preparing ferronickel concentrates from low-grade laterite nickel ore under the action of composite ...
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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%, nickel recovery of 94.06%, iron grade of 34.74%, and iron recovery of 80.44% could be obtained after magnetic separation under the conditions …
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The magnetic concentrates were applied to further improve the efficiency of smelting process based on DRMS-RKEF process at laboratory scale, which were produced from nickel laterite A by reduction at 1250 °C for 80 min with low-nickel concentrates of 20% (72.43% Fe, 4.65% Ni), composite additives of 5% and C/Fe of 2 followed by …
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At present, the most common methods to use iron resources in such waste slags include metal extraction, molten slag reduction, and magnetic separation after direct reduction; adding CaO to adjust ...
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a first magnetic separation to release the metallic fraction (accumulators) from the polymeric fraction; – knife milling of the accumulators to separate the metallic cases and screen from paste and separators; – a second magnetic separation of the nickel-containing parts of the accumulators; and –
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Experimental fl owsheet is depicted in Figure 2, consisting of coal-based selective reduction of nickel laterite-magnetic separation of reduced sample. The row laterite ore was crushed to 75 per cent
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DOI: 10.1016/s1003-6326(20)65256-6 Corpus ID: 216163739; Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation @article{Shuai2020EfficientEO, title={Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation}, author={Yuan Shuai and …
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It is shown that nickel concentrate containing 3.13 % Ni and 59.20 % Fe was achieved at recoveries of 84.36 % and 71.51 % for Ni and Fe, respectively under the following conditions: reducing at (1120±40) °C for 120 min, C/P being 1.0, wet grinding of reduced pellets up to 70%–87% passing 0.074 mm and a magnetic field intensity of …
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The results show that gravity separation and flotation have no obvious separation effect on iron minerals in nickel metallurgical slag, and magnetic separation has a certain separation effect. At present, the accumulated industrial waste products have been subjected to strict control, and there is an urgent need to recycle metallurgical slag.
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