laterite nickel magnetic properties - search results

Metals | Free Full-Text | Production of Ferronickel ...

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 additive and coal as a reductant. The effects of roasting temperature, roasting duration, reductant dosage, additive dosage, and grinding time on the grade and recovery were investigated.

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(PDF) Nickel laterite processing technologies – where to next?

Nickel laterite recovery can be carried out by pyrometallurgy and hydrometallurgy process. Hydrometallurgy is a metal extraction process execute at relatively …

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Extraction of Nickel from Magnesia–Nickel Silicate Ore ...

Abstract In this study, magnesia–nickel silicate ore was investigated, which contained 0.83% Ni and antigorite, chlorite, magnetite (Fe3O4), quartz, and mica as the main minerals. Chloride roasting and magnetic separation were used to treat the ore. The addition of red mud enhanced the transformation of nickel silicate to a strongly magnetic mineral mainly comprising metallic Ni and that …

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Spinel ferrite transformation for enhanced upgrading ...

Upgrading nickel grade in low-grade nickeliferous laterite ores before metallurgical extraction process is of utmost importance. However, most of nickel exists mainly in the form of isomorphism in serpentine or goethite, resulting in difficulty in upgrading of nickel by physical separation methods. In this paper, spinel ferrite transformation for enhanced upgrading nickel grade in laterite ore ...

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(PDF) The application of nickel lateritic ores in sintering

By adding a flux and using a direct reduction roasting and magnetic separation method, iron and nickel enrichment from refractory low-grade nickel laterite ore, in which nickel is mainly contained ...

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(PDF) Nickel Laterite Smelting Processes and Some Examples ...

Nickel Laterite Smelting Processes and Some Examples of Recent Possible Modifications to the Conventional Route. Download. Related Papers. PENGOLAHAN NIKEL LATERIT SECARA PIROMETALURGI. By miu by. Metallurgical Furnaces. By Pedro Avalos Garcia. The Past and the Future of Nickel Laterites.

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(PDF) Nickel laterite processing and electrowinning ...

Laterite ores About 45% of the nickel for the stainless steel in- It is noteworthy that laterite ores account for over dustry originates from reprocessing of scrap which, two-thirds of the worldwide reserves for important non- apart from the contained nickel, is important due to the ferrous metals such as …

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Magnetic Fluids: Fabrication, Magnetic Properties, and ...

Jian-ming Gao, Fangqin Cheng, Facile Synthesis of Spinel Ferrites with Enhanced Magnetic Properties from Two Intractable Metallurgical Resources: Zinc-Bearing Dust and Nickel Laterite Ore, Journal of Superconductivity and Novel Magnetism, 10.1007/s10948-017-4531-5, 31, 8, (2655-2660), (2017).

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Pre-concentration of nickel in laterite ores using ...

For example, in a nickel-cobalt laterite deposit in New South Wales, Australia, gravity separation followed by magnetic separation resulted in upgrading nickel from 0.9% to 1.1% at 57% recovery . Furthermore, Muir and Johnson (2006) demonstrated that in physical beneficiation using gravity, particle size is the key parameter.

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Structure and Magnetic Properties of Co, Mn, Mg, and Al ...

Structure and Magnetic Properties of Co, Mn, Mg, and Al Codoped Nickel Ferrites Prepared from Laterite Leaching Solutions July 2014 Chemistry Letters 43(7):1098-1100

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Is Nickel Magnetic? - Techiescientist

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.

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Calcination of low-grade laterite for concentration of Ni ...

Since, the laterite ore usually contains Fe which has magnetic properties, the concentration of Ni is not an easy task. In order to enable the selective concentration of nickel by magnetic separation, the calcination of laterite was carried out prior to the magnetic separation. The aim was to alter the crystalline structure of Fe species and ...

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Effect of Metal Substitution on the Magnetic Properties of ...

Facile Synthesis of Spinel Ferrites with Enhanced Magnetic Properties from Two Intractable Metallurgical Resources: Zinc-Bearing Dust and Nickel Laterite Ore Full Record Other Related Research

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Atmospheric chloride leaching: The way forward for nickel ...

The publications from Jaguar Nickel [1, 2, 3,4] as well as the patent application [21] show that one of the two key original concepts of the high-concentration chloride laterite leaching circuit ...

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(PDF) THERMODYNAMIC PROPERTIES OF NICKEL LATERITE ORES

ferronickel from low grade nickel laterite by prereducing-magnetic separation-smelting. XXIV Inter. Mineral Processing Congress, Volume 2, September, 2008, pp. 1622-1633. Beijing, China.

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(PDF) Recovery of Magnetite from Leached Laterite-residue ...

Magnetic separation was applied only to recover iron from the laterite ore after being treated by the selective reduction in which magnetite was produced. About 93.9 % of magnetite was upgraded ...

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Preparing Ferro-Nickel Alloy from Low-Grade Laterite ...

Nickel, an important strategic metal resource with the properties of anticorrosion, antiabrasion, and thermostability, has been widely used in stainless steel, special alloy steel, and other areas [1,2].Nickel ore is divided into 30% nickel sulfide ore and 70% nickel oxide ore (most is laterite nickel ore), but almost 60% of nickel products come from nickel sulfide ore at present [3,4,5,6].

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Calcination of low-grade laterite for concentration of Ni ...

Since, the ore contains both Ni and Fe, the calcination of laterite is effective in altering the crystalline structure of Fe species and therefore its magnetic properties, which in turn enable the selective concentration of nickel by magnetic separation that is an easy and environmentally-friendly technique.

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Recovery of Magnetite from Leached Laterite-residue by ...

cating that both elements have high magnetic properties. Therefore, this method cannot be applied directly to recover the iron from laterite ore without nickel included. One of the most significant factors in the application of laterite ore into iron making is the increase of iron content and reduction of its impurities as low as described ...

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Preparation of magnetic composite adsorbents from laterite ...

i. Treatment of Laterite nickel ore. 20 g laterite nickel ore was mixed with 100 mL of 5 M sulfuric acid in a 3-necks flask. The leachate and leaching residue was obtained. ii. Preparation of magnetic particles. The sodium sulfite solution was added into the above leachate for reduction of ferric ions to ferrous ions.

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The life of Ni - Nickel Institute

The world's nickel resources are currently estimated at almost 300 million tons. Australia, Indonesia, South Africa, Russia and Canada account for more than 50% of the global nickel resources. Economic concentrations of nickel occur in sulphide and in laterite-type ore deposits. Despite the fact that nickel mining has significantly increased over

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Upgrade of nickel and iron from low-grade nickel laterite ...

Low-grade saprolite nickel laterite, characterized by complicated minerals composition and fine-grained and complex dissemination, was commonly treated with a low recovery efficiency of Ni and Fe by conventional methods. Hence, an improved direct reduction and magnetic separation process was proposed. Meanwhile, the mechanisms on the enhanced growth of the Ni–Fe particles and the …

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Facile Synthesis of Spinel Ferrites with Enhanced Magnetic ...

12%Nickel laterite ore and zinc-bearing dust are multi-metal-associated and intractable resources. Comprehensive and cooperative utilization of zinc-bearing dust and nickel laterite ore for the preparation of spinel ferrites with enhanced magnetic properties by a facile process was proposed. The structure and magnetic properties of as-prepared spinel ferrites were …

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Carbothermic Reduction of Nickeliferous Laterite Ores for ...

Nickel is an important strategic alloying metal with wide industrial applications.1 Nickel alloys are characterized by high strength and ductility as well as excellent corrosion and heat resistances. Approximately 70% of nickel reserves are nickeliferous laterite ores, from which only about 40% of the world nickel was produced.2 Nickel is associated mostly with iron oxides or silicate minerals ...

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(PDF) Calcination of low-grade laterite for concentration ...

It was found that the nickel content was the highest when Since the nickel in laterite is uniformly distributed and has a the magnetic field strength was adjusted at 0.5 T and the pulp den- particle size of several nm (Fig. 4), the sample was first ground sity was kept at 15% (Fig. 6).

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WO2010078787A1 - A laterite beneficiation process for ...

A beneficiation process for enriching nickel and/or cobalt involves the steps of dividing nickel laterite into limonite type ore and serpentine type ore to beneficiate separately; classifying by screening at least one time after washing the ore; beneficiating separately the products of the various grades obtained; further classifying by gravity separation and magnetic separation to obtain the ...

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Metals | Free Full-Text | Nickel Laterite Smelting ...

Lu et al. studied the effect of sodium sulfate addition on the hydrogen reduction of nickel laterite ore. A low-grade Indonesian nickel laterite ore containing 1.38% Ni, 25.3% Fe, 15.0% MgO, and 19.1% SiO 2 was used in the experiments. Reagent-grade sodium sulfate was used as an additive, and H 2 reduction was conducted. In each run, 1 kg of ...

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Recovery of magnetite from leached laterite-residue by ...

The heating of the ore at 673 K did not improve significantly on its properties whether goethite changes to magnetite. However, the reduction treatment increased the magnetic properties of the ore due to the formation of magnetite. The magnetic susceptibilities of the original, heated and reduction treated laterite ores were 2.36×10.

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Interpretation Of Nickel Mineral Distribution Using ...

Rock magnetic properties susceptibility describes the behavior of rocks that are under the influence of magnetic ... The nickel-carrying bedrock mineral is ferromagnetic, so the laterite nickel which is the result of weathering is basically ferromagnetic. Due to this ferromagnetic property, nickel can be detected using geomagnetic method.

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Laterite - Wikipedia

Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock, usually when there are conditions of high temperatures and heavy rainfall with alternate ...

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Characterization of Laterite Nickel Ore - ResearchGate

Some reaction and thermodynamic properties of nickel laterite ores were also investigated in the paper. ... followed by magnetic separation using 400-600 Gauss of the magnetic field to separate ...

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Cobalt Metal Characteristics - ThoughtCo

Cobalt naturally occurs in nickel-bearing laterites and nickel-copper sulfide deposits and, thus, is most often extracted as a by-product of nickel and copper. According to the Cobalt Development Institute, about 48% of cobalt production originates from nickel ores, 37% from copper ores and 15% from primary cobalt production.

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nickel Ore - SlideShare

nickel Ore 1. Nickel Ore Processing Prepared By- Mukesh Ranjan Behera 1 2. CONTENTS- What is Nickel Nickel Physical and Chemical Properties Nickel History and Indian Nickel Market Formation of Nickel and its Types Processing Options relative to deposit type Laterite Ore Processing Sulfide Ore Processing Sukinda COB Analysis World Nickel Reserve and Production …

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