In 2022, the global production of primary nickel totaled 3,300 kt. All nickel ores have relatively low nickel content. Nickel sulfide ores contain nickel as pentlandite, which can be efficiently separated and concentrated using flotation methods.
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The roasting of sulfide ores and concentrates is one of the most important steps in pyrometallurgical metal production from primary raw materials, due to the …
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Since the high-grade sulphide ore reserves are being depleted due to the rapid growing industrialization, processing of the low-grade nickel ores is considered as sustainable alternative for the nickel production. The ores like cobaltite, erythrite, glaucodot, and skutterudite are the major minerals of cobalt.
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On account of the complex occurrence of valuable metals in a large amount of low-grade nickel sulfide ore, obstacles have been caused by using the existing metallurgical method. Therefore, we are reporting a new selective chlorination roasting and water leaching process to treat complex nickel sulfide ore.
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The goal of the present work was to study the recovery of copper, nickel, and platinum group metals (PGMs) (Pt and Pd) from low-grade copper–nickel ore containing pyrrhotite, pentlandite, and ...
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Sulfation roasting, a common activation technique, is a potential method for cleaner production of nickel from complex low-grade ores. In this study, nickel oxide–sulfide mixed ore concentrate was roasted with the addition of ammonium sulfate under a static air atmosphere, and the roasted products were leached by water, in order to evaluate the …
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Mixed oxide-sulfide nickel ore is becoming the major source of nickel produced in the nickel smelting enterprise due to the increasing global demand of nickel and the depletion of high-grade nickel sulfide ore.Low temperature roasting technique by ammonium sulfate is a potential cleaner production process with high metal recovery, …
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The production methods and the types of nickel ores, which have been treated, have also changed over the ... Nickel sulphide ores contain pentlandite, a mineral containing approximately 34 mass percent nickel. ... erous ores is the selective conversion of the nickel oxide values within the ore to a nickel sulphide, while retaining
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With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or …
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An innovative and clean technique for simultaneously extracting Ni and Cu from mixed oxide-sulfide copper‑nickel ore using FeCl 3 ∙6H 2 O chlorination was developed. This technique not only prevented environmental pollution, but also allowed the efficient recovery of valuable metals.
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The conventional nickel smelting and refining is the dominant strategy for nickel production from the sulfide nickel ores. The main disadvantages are the significant amount of SO 2 emissions during smelting and complex refining processes. In this paper, the authors investigated a solid-state nickel extraction method that recovered nickel …
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The mineralogical phase identification of the ore samples was carried out using XRD (Rint-2000, Rigaku), and the results in Fig. 1 indicate that the major crystalline minerals in mixed oxide-sulfide nickel ore are pyrite (FeS 2), pyrrhotite (Fe 7 S 8), pentlandite ((Fe,Ni) 9 S 8), chalcopyrite (CuFeS 2) and quartz (SiO 2).It can be …
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Pentlandite is the most common and abundant mineral used for nickel extraction, accounting for over 60% of worldwide nickel production, mostly from sulfide copper–nickel ore deposits [13–15]. Pentlandite is usually associated with iron sulfides–pyrite (FeS2) and pyrhotite (Fe7S8) and copper-iron sulfide chalcopyrite …
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Due to the complex structure of mineralization, a combination of gravity-separation and flotation methods was applied for the concentration of nickel sulphide and oxide ores.
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Nickel is sourced from sulphide and laterite ores. While 70% of the nickel resources are contained in laterites, these ores are often complex and expensive to treat using conventional methods.
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The mined ores (1–4% Ni) are processed to upgrade the metal content with 10–20% Ni in the concentrates. Thus, the preconcentration of nickel ores is an important unit operation to upgrade the nickel before commencing any extraction steps. Ni is mined from sulfide …
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The flotation behaviour of a Western Australian nickel ore was characterised by size-by-size flotation rate tests to extract rate constant information. The aim was to identify the effect of surface interactions on the flotation of the nickel sulphide mineral, pentlandite, with magnesium-silicate bearing minerals (predominantly serpentines).
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The roasting of sulfide ores and concentrates is one of the most important steps in pyrometallurgical metal production from primary raw materials, due to the necessity of excess sulfur removal, present in the material. Pentlandite is one of the main sources for nickel pyrometallurgical production. The knowledge of its reaction …
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About 70% of the world's nickel production comes from nickel sulfide and 30% from nickel oxide. ... genthite (Ni,Mg) 4 ·3SiO 2 ·6H 2 O, garnierite H 2 (Ni,Mg)SiO 4 · x H 2 O, pentlandite (Fe,Ni) 9 S 8, Ni-bearing pyrrhotite ... There are abundant nickel oxide ore resources in the Yuanjiang, Mojiang, and Mangshi areas of Yunnan Province …
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The mineral system characteristics of the Sudbury Ni-Cu-Co-PGE sulfide ore deposits. Peter C. Lightfoot, in Nickel Sulfide Ores and Impact Melts, 2017 Cobalt. Pentlandite is the principal host for the bulk of the cobalt in the Sudbury ores (Naldrett, 1961), and there is a range in Ni/Co ratio depending on whether the pentlandite was formed in a contact or …
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This study provides a novel method for the extraction of nickel from pentlandite by bioleaching at elevated pH values. ... role in industry production. ... and processing of nickel sulfide ores ...
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Copper Nickel Sulfide Ore And Nickel Oxide Ore. ensp0183enspNickel Production Methods From Pentlandite Oxide Ores Investigation of selective leaching process of nickel silicate ore from.Flotation, nickel sulphide ores are less complicated for processing than oxide ores.Process includes the sulphuric acid leaching of nickel ores …
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Among the nickel ores, only pentlandite (sulfide [Ni, Fe) 9 S 8], garnierite (hydrated silicate ... as it appears that chemoorganotrophic bioleaching of oxide ores has a lot of potential (Chaerun et al., ... in Macedonia by magnetic separation–flotation method, and production and melting of ferronickel. At the same time, this study pays ...
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Abstract: The roasting of sulfide ores and concentrates is one of the most important steps in pyromet-allurgical metal production from primary raw materials, due …
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Pentlandite is the most important nickel sulfide mineral and commonly occurs with pyrrhotite and chalcopyrite. ... type processes were utilized to extract base metals from the pyrrhotite and produce an iron oxide residue suitable for production of iron ore pellets destined for steel making. ... such as leaching nickel sulfide flotation tailings ...
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Although sulfide ores account for a smaller fraction of global Ni reserves, approximately 60% of global Ni production is from sulfide ores [8]. Pentlandite (Pn), the primary Ni-bearing mineral of the sulfide ores is typically associated with pyrrhotite (Pyrr), pyrite, chalcopyrite, as well as non-sulfide gangue minerals.
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The Inco process, the Outokumpu Oy process, and the Sheritt Gordon process are primary methods for nickel production from sulfide ores. Nickel briquettes and nickel powder …
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Nickel extraction from primary resources such as ores/minerals (sulfides, arsenides, silicates, and oxides) including the unconventional one viz., the polymetallic sea nodules, and various ...
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Nickel mineralization in the ore (by quantitative X-ray diffraction) was found to be within pentlandite, violarite, millerite, and gersdorffite. ... nickel; pentlandite; pyrrhotite; particle size; liberation; ore characterization 1. Introduction The primary contributors to nickel production, ranking as the top six nations, include Indonesia ...
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1. Introduction In this work, the metallurgical treatment methods of nickeliferous laterites are examined and among them the Greek ferronickel (Fe-Ni) production process. …
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The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries of over 85%. The achieved successes of PGM concentration by flotation from the pristine sulfide ores are largely due to the occurrence …
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2. Nickel production process The nickel mined originates from two kinds of mineral stores: Magmatic sulfide stores where the essential metal mineral is pentlandite [(Ni, Fe)
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Nickel is associated with cobalt in laterite oxide ores, and all the other Ni-based byproducts derive from Mg content. The extraction efficiency of nickel depends on …
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