Experimental Study on Reduction-Magnetic Separation …
Resultthe environment [4]. The combination of process of metallurgical and mineral separation is suited to deal with any type of nickel laterite ore and has the advantages of a short process, low energy conservation, etc., thus it is worth further research. In this study, the reduction and magnetic separation of low-grade …
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Direct Extraction of Nickel and Copper from Low-Grade …
Resultore to chlorination agent is 1:0.6, and the ore particle size is 180–200 mesh, the extraction of nickel and copper can reach 83.6% and 81.3%, respectively, but less than 3% of impurity iron enters the leach solution.
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Efficient enrichment of nickel and iron in laterite nickel ore …
ResultAbstract. 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%, …
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Magnesium Extraction from Magnetic Separation Tailings of Laterite Ore …
ResultThe chemical analysis of low-grade laterite ore and magnetic separation tailings are shown in Tables 1 and 2. The nickel was reduced from 0.82% of the original ore to 0.3% of the tailings, and the iron content was reduced from 9.7 to 5.0% by magnetic separation. ... it can be seen that the acid leaching …
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Factors Affecting the Upgrading of a Nickeliferous Limonitic Laterite
ResultFactors Affecting the Upgrading of a Nickeliferous Limonitic Laterite Ore by Reduction Roasting, Thermal Growth and Magnetic Separation.pdf Available via license: CC BY 4.0 Content may be subject ...
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Upgrading low nickel content laterite ores using selective …
ResultHighlights Selective reduction and magnetic separation was conducted on low grade nickel laterite ore. High grade nickeliferous concentrate could be produced from these laterite ores. The addition of calcium sulphate promoted nickel concentration. Nickel was mainly concentrated into a γ Fe–Ni …
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An Overview of Nickel Utilization from Laterite Ore
ResultThe nickel–cobalt alloy is a kind of permanent magnetic material and is widely used in the field of electronic remote control, atomic energy industry and ultrasonic technology [ 6, 7, 8 ]. Besides, in chemical industry, nickel and its alloys are usually used as catalysts for hydrogenation reactions. Fig. 1.1.
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Nickel (Ni) Ore | Properties, Formation, Minerals, Deposits
ResultNickel (Ni) Ore. Modified date: 23/04/2023. Nickel ore refers to the naturally occurring rocks or minerals that contain significant amounts of nickel. Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white metal with a relatively high melting point and excellent corrosion resistance.
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Separation and recovery of iron and nickel from low-grade laterite …
ResultThe magnetic separation efficiency of nickel from the laterite ore was evaluated using the recovery ratio of nickel R ni using the formula: (1) R Ni = m Ni × β Ni M Ni × γ Ni × 100 % where m Ni is the mass of the magnetic product, g; β Ni is the nickel content in the magnetic product, wt.%; M Ni is the mass of the …
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Production of Ferronickel Concentrate from Low-Grade …
ResultThe roasted reduction-magnetic separation process is mainly used for the treatment of laterite ore, which requires the laterite ore to be crushed and ground. Then the …
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Preparation of Ferronickel from Nickel Laterite Ore via Semi …
ResultThe 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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(PDF) Migration and Aggregation Behavior of Nickel and …
ResultThe flow chart of reduction roasting-magnetic separation experiment of laterite nickel ore. The mineral phases were characterized by X-ray diffraction (Japan Science D/max-R diffractometer ...
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Efficient enrichment of nickel and iron in laterite nickel ore …
ResultThe 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 …
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Factors Affecting the Upgrading of a Nickeliferous …
ResultKeywords: laterites; limonite; nickel; reduction roasting; magnetic separation 1. Introduction Nickel metal is primarily employed in high nickel alloys and superalloys. Nickel utilization is increasing at a rate of about 4% per year [1]. Nickel is used in stainless steels, non-ferrous alloys and plating applications.
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Extraction of Ferronickel Concentrate by Reduction Roasting-Magnetic …
ResultThe 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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STUDY ON SELECTIVE REDUCTION AND MAGNETIC …
ResultKeywords: nickel laterite ore, selective reduction roasting, magnetic separation Q LI et al XXV INTERNATIONAL MINERAL PROCESSING CONGRESS (IMPC) 2010 PROCEEDINGS / BRISBANE, QLD, AUSTRALIA / 6 ...
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Kinetics study on non-isothermal carbothermic reduction of nickel …
ResultSodium sulfate has proven to be an effective additive for enhancing the reduction and metal aggregation during the carbothermic reduction of Ni laterite ore. In this study, the effect of Na 2 SO 4 on the non-isothermal reduction kinetics of Ni laterite ore with solid C was investigated. The kinetic parameters and …
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High-Grade Ferronickel Concentrates Prepared from Laterite Nickel Ore
ResultThe 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 by fine particle reduction and …
ResultAbstract. Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments …
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Calcination of low-grade laterite for concentration of Ni by magnetic …
ResultKim et al. (2010) had investigated the concentration of nickel from low-grade laterite nickel ore (Ni 1.50%, Fe 22.33%) using the calcination process at 500°C for 1 hour followed by wet magnetic ...
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Nickel Laterite Ore Deposits: Weathered Serpentinites
ResultNickel laterite ores account for over 60% of global nickel supply. They are the product of intensive deep weathering of serpentinites under humid tropical conditions. Nickel is concentrated to over 1.0 wt% and is hosted in a variety of secondary oxides, hydrous Mg silicates and smectites. The formation, mineralogy …
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High-Grade Ferronickel Concentrates Prepared from …
ResultHigh-Grade Ferronickel Concentrates Prepared from Laterite Nickel Ore by a Carbothermal Reduction and Magnetic Separation Method. Jingzhe …
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Relationship between process mineralogical …
ResultThe analysis results are shown in Figure 8. According to Figure 8, the grades of Cr and Fe in chromite of laterite nickel ore are 35.99% and. Figure 8 Analysis result of chromite phase by EDS. 16.89% respectively, and the grade of Cr is much higher than the average grade of Cr of laterite nickel ore.
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(PDF) Production of Ferronickel Concentrate from Low-Grade Nickel
ResultThe 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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Nonmolten state metalized reduction of saprolitic laterite …
ResultLaterite ore is an important raw nickel ore resource, and methods for extracting valuable metals from low-nickel saprolitic laterite has not been fully developed. ... 1200 °C; duration, 60 min; coal dosage, 8%; and additive dosage, 7%. The nickel and iron grades of magnetic separation concentrate produced under …
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Low-grade Nickel Laterite Ore
Resultthe environment [4]. The combination of process of metallurgical and mineral separation is suited to deal with any type of nickel laterite ore and has the advantages of a short process, low energy conservation, etc., thus it is worth further research. In this study, the reduction and magnetic separation of low-grade …
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Roasting and Leaching Behavior of Nickel Laterite Ore
ResultAbstract 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. Nickel in laterites is hosted in many different compounds such as oxides, …
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Upgrade of nickel and iron from low-grade nickel laterite by …
ResultFerronickel enrichment by fine particle reduction and magnetic separation from nickel laterite ore. Article 03 October 2014. Separation and …
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Upgrading low nickel content laterite ores using
Result... The reduction of nickel laterite was carried out at 1050-1150 °C to prevent the formation of semi-fused nickel ore, which causes the kiln-ringing …
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Innovative process for preparing ferronickel materials from laterite …
ResultAn innovative process for preparing ferronickel materials from laterite ore by reduction roasting-magnetic separation in the presence of additives was proposed,and the effect of additives on reducing roasting-magnetic separation of laterite ore and the technical parameters of roasting and magnetic separation …
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