Separation and recovery of iron and nickel from low-grade laterite
The 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 reduction product, g ...Web
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Mineralogy and crystal chemistry of a low grade nickel laterite ore
More nickel laterite ores are imported into China because of the depletion of domestic nickel sulfide resources. Consequently, it is of great importance to the Chinese economy to effectively utilize low grade nickel laterite ore [7]. Nickel laterite ores are formed by the weathering of olivine bedrock in tropical to sub-tropical climates [8,9].Web
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Nickel
It can be hammered into thin sheets, which means it is malleable. Nickel was discovered in 1751 by Axel Fredrik Cronstedt. Iron, cobalt and nickel (numbers 26, 27 and 28 on the Periodic Table) are the only three elements known to be ferromagnetic (the strongest type of magnetism) above room temperature. Of the three, nickel is the least magnetic.Web
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Metal, iron, & nickel | Some Meteorite Information | Washington
Because chondrites are rich in metal and the metal is rich in nickel, all chondrites have bulk (whole-rock) concentrations of nickel of 1.0-1.8% (i.e., 10,000-18,000 ppm). That is 100-1000 times greater than practically any terrestrial (earth) rock. An earth rock with as much as 1.0-1.8% Ni would be a nickel ore.Web
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Efficient enrichment of nickel and iron in laterite nickel ore by …
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 of …Web
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Nickel (Ni) Ore | Properties, Formation, Minerals, Deposits
Magnetic properties: Nickel is ferromagnetic, meaning it can be magnetized, and it has a high magnetic permeability, which makes it useful in various magnetic applications. Other properties: Electrical conductivity: Nickel is a good conductor of electricity and is used in electrical and electronic applications.
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Pre-concentration of nickel in laterite ores using physical separation
Of course, upgrading nickel using magnetic separation highly depends on the ore mineralogy and mineral liberation, and if nickel is associated with magnetic minerals. Table 3 also shows that the percentage of iron increases (by ~70%) in the magnetic product for ores S and I, but not for ore L. On the other hand, more silicon bearing minerals ...Web
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Extraction of Nickel from Garnierite Laterite Ore Using Roasting …
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 was collected in the Mojiang area of China. Garnierite was the Ni-bearing mineral; the other main minerals were potash …Web
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Magnesium Extraction from Magnetic Separation Tailings of Laterite Ore
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. And, in the process of magnetic separation, most of CaF 2 went into the magnetic separation tailings, and the other part went into the ferronickel concentrate.Web
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19 Metals That Are Not Magnetic
Ferromagnetism is exhibited by transition metals iron, cobalt, and nickel. 4. Ferrimagnetism: Atoms that have a mix of parallelly and anti-parallelly aligned magnetic moments exhibit ferrimagnetism. These substances get attracted to magnets and start acting as permanent magnets. Ferrimagnetism has a high magnetic susceptibility. 5 ...Web
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Facts About Nickel | Live Science
Nickel is a fairly good conductor of electricity and heat and is one of only four elements (cobalt, iron, nickel and gadolinium) that are …Web
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Nickel 101: Properties, Mining & Investment
Nickel is almost always combined with other metals to create alloys, contributing strength and resistance to oxidation. Magnetic. Nickel is one of only four ferromagnetic metals, meaning it is magnetic at room …Web
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Not All Iron Is Magnetic (Magnetic Elements)
Other magnetic elements include nickel and cobalt. Nonmagnetic (diamagnetic) metals include copper, gold, and silver. Why Iron Is Magnetic (Sometimes) Ferromagnetism is the mechanism by which materials are attracted to magnets and form permanent magnets. The word actually means iron-magnetism because that is the most …Web
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Nickel | Definition, Properties, Symbol, Uses, & Facts
Nickel, chemical element, ferromagnetic metal of Group 10 (VIIIb) of the periodic table, markedly resistant to oxidation and …Web
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Selective Reduction of Laterite Nickel Ore
The novel method is done via direct reduction and magnetic separation. In laterite nickel processing by direct reduction, the challenges are to conduct selective reduction of nickel and to let iron unreduced. ... nickel ore is the highest dehydroxylation process compared to other lateritic nickel ore types. It occurs at temperatures of 261270 ...Web
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Separation and recovery of iron and nickel from low-grade …
an alternative to nickel sulfide ore [1–5]. Low-grade laterite ... separate nickel and iron. After magnetic separation, the contents of nickel and iron in the magnetic products wereWeb
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Nickel | Definition, Properties, Symbol, Uses, & Facts
The metallurgy of nickel is complicated in its details, many of which vary widely, according to the particular ore being processed. In general, the ore is transformed to dinickel trisulfide, Ni 2 S 3 (with nickel …Web
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Pyrrhotite: Physical properties, uses, composition
Sometimes mined as an ore of nickel or along with pentlandite. A historic ore of iron and source of sulfur. ADVERTISEMENT. ... Troilite is not magnetic, and when the value of "X" in a pyrrhotite specimen is close to zero (like troilite), the pyrrhotite is very slightly magnetic. As the value of "X" increases, the pyrrhotite becomes more magnetic.Web
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Optimal conditions for selective reduction process of Nickel …
A low-grade nickel laterite ore from Indonesia was selected to investigate the effect of temperature and time of reduction upon the extraction of nickel through the selective reduction-magnetic separation process to produce the ferronickel. The nickel ore was mixed with5 wt.% of anthracite coal and 10 wt.% of sodium sulfate additive.Web
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Migration and Aggregation Behavior of Nickel and Iron in …
for 20 min, followed by 150 mT magnetic separation. The grades of nickel and iron were 7.09% and 67.9%, which are relatively low. The recovery efficiency of nickel and iron were ... For the laterite nickel ore, sulfur can lead to the formation of FeS and Fe-Ni at 500 C, thus achieving the selective separation of nickel and iron [15–17]. The ...Web
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Nickel Metal: It's Properties, History, Production & Uses
The separation process for nickel is highly dependent upon the type of ore. Nickel sulfides, such as those found in the Canadian Shield and Siberia, are generally found deep underground, making them labor-intensive and expensive to extract. ... Austenitic steels are non-magnetic stainless steels that contain high levels of chromium and nickel ...Web
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Efficient Synchronous Extraction of Nickel, Copper, and Cobalt
Separation and recovery of iron and nickel from low‒grade laterite nickel ore using reduction roasting at rotary kiln followed by magnetic separation technique. Mining, Metallurgy & Exploration ...Web
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Is Nickel Magnetic?
Nickel (Ni) is ferromagnetic in nature, because of the parallel alignment of its 2 unpaired electrons or 'spins' in presence of an external magnetic field. Nickel holds its magnetic property even in absence of any magnetic field, which gives permanent magnetization to it. Nickel exists as a silvery-white lustrous metal with a tinge of gold.Web
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9.3.1: Magmatic Ore Deposits
9.3.1.1 Magmatic Sulfides and Cumulates. Mafic and ultramafic magmas, like all common magmas, contain the major elements oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. But they typically also contain other elements including sulfur, nickel, and less common metals such as platinum, palladium, and chromium.Web
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High-Grade Ferronickel Concentrates Prepared from Laterite Nickel Ore
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 …Web
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Is Nickel Magnetic?
Nickel (Ni) is ferromagnetic in nature, because of the parallel alignment of its 2 unpaired electrons or 'spins' in presence of an external magnetic field. Nickel holds its magnetic property even in absence of …Web
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Mechanism of sodium chloride in promoting reduction of high
The low nickel laterite ores, which nickel grade less than 1.5%, widely exists in the nature; consequently, the process of roasting reduction followed by magnetic separation has been proposed to ...Web
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Comprehensive Review on Metallurgical Upgradation Processes of Nickel
With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or technology, high-grade nickel ores are being exhausted gradually in the world. This review outlines metallurgical processes for nickel production from various nickel sulfide ores …Web
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Study of selective reduction in lateritic nickel ore: Saprolite versus
The selective reduction method at a low-temperature process, which continued with the lateritic nickel ore's magnetic separation process, has been developed [8]. Metalization of iron is inhibited, increasing the nickel content in concentrate (magnetic particle) using additives, such as sodium sulfate, sodium carbonate, and sodium chloride …Web
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List of Magnetic Metals
Nickel Cobalt Gadolinium Dysprosium Terbium Some types of steel (e.g., ferritic stainless steel) Neodymium, iron, boron alloy (Nd magnet)Web
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