2022.5.16 The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched
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2008.1.1 Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an
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2020.6.18 Synchronous extraction of nickel and copper from a mixed oxide–sulfide nickel ore in a low–temperature roasting system. Journal of
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For sulfide ore processing, nickel has to be separated from the iron present in the sulfide concentrate. This is conventionally done in both the smelting and converting stages. To
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2010.10.1 Economic Ni resources are found in either sulfide or laterite-type ores. Although the majority of economic resources are contained in laterite ores, the bulk of
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2020.2.28 Clearly, each combination of nickel sulfide and laterite ore will differ in its co-processing behavior and there will be an optimum blend, supply of additional acid, and set of process conditions that maximizes
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2020.3.29 Sulfide ore serves as a major source of native nickel due to the low extraction cost and facile metallurgical process [ 2 ]. Ni-rich sulfide ore has been
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2021.9.21 Specifically, for the production of nickel class 1, estimates have been made to quantify the difference in environmental impact of nickel class 1 being produced from
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2020.6.18 Low‒nickel matte as the main intermediate product of nickel sulfide ore in traditional pyrometallurgical smelting, during this process, the valuable metals Ni, Cu, and Co have been enriched 6,7 ...
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2020.2.28 The processing of nickel laterites by high pressure acid leaching (HPAL) typically uses feeds with an average nickel content not less than 1.1%–1.2% (cut-off grade 1.0%) [] though recently several nickel
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For sulfide ore processing, nickel has to be separated from the iron present in the sulfide concentrate. This is conventionally done in both the smelting and converting stages. To aid iron rejection in the smelting stage, the concentrate is first partially roasted to oxidize the iron sulfide. This is done either in a multiple hearth roaster or ...
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Naturally found in two forms, laterite and sulphide deposits, the majority of nickel currently mined is nickel sulphide, because it is easier and cheaper to process. [Image changes to a pile of manufactured nickel rods and then to a rock of nickel sulphide ore] However, the majority of the world's reserves, around 70%, are laterites.
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2020.2.28 The processing of nickel laterites by high pressure acid leaching (HPAL) typically uses feeds with an average nickel content not less than 1.1%–1.2% (cut-off grade 1.0%) [] though recently several nickel laterite projects have been revalued with lower nickel cut-off grades based upon the cobalt content of the ore.It may also be possible to revalue
Read More2016.6.10 The nickel content could be 10.0–25.0% in the preconcentrated laterite ore by 2–5 times, which would be beneficial to efficient extraction and resource utilization of valuable metals from concentrated nickel sulfide ore (Zhao et al., 2020).
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2022.9.14 A handful of studies have used pH swing methods to process ore and mine tailings to enhance recovery of nickel, cobalt, and associated metals from silicate minerals while sequestering CO 2 in carbonate minerals (11, 13, 14).These “indirect” or “two-step” processes for enhanced metal recovery dissolve silicate minerals at low pH and
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2019.9.10 If this ore is treated with the existing nickel sulfide ore smelting process, a large number of valuable metals are lost in the flotation process,4 coupled with high energy consumption caused by high-temperature operation, resulting in high costs and poor economic benefit of the entire smelting process.5 Taking JNMC’s concentrate with an ...
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2014.8.11 The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most ...
Read More2022.5.7 The automotive industry is in the process of transformation from the traditional production of vehicles with engines powered by the combustion of fossil fuels to vehicles powered by electric energy. This
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2010.10.1 Nickel is commonly present in two principal ore types—sulfide or laterite. Sulfide ores are typically derived from volcanic or hydrothermal processes and usually include copper (Cu) and/or cobalt (Co), and often precious metals such as gold (Au) or platinum (Pt), palladium (Pd) and rhodium (Rh) (the platinum group metals or PGMs)
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2020.3.29 Nickel, which is commonly hosted in sulfide ores and laterite, is widely used in both civil and military endeavors [].Sulfide ore serves as a major source of native nickel due to the low extraction cost and facile metallurgical process [].Ni-rich sulfide ore has been exhausted by endless mining resulting from the substantial demand for and
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2023.2.12 Ferronickel grades of 5–25% nickel are commonly employed [ 3 ]. Nickel is predominantly mined from sulfide and laterite deposits, with the latter accounting for approximately 72% of global production [ 4 ]. While secondary sources of nickel such as lithium ion battery cathode recycling remain important [ 5 ], the majority of demand
Read More2021.6.1 Nickel sulfide ore is the main raw material for refining nickel due to its high ore grade and mature processing technology (Zhu et al., 2012). However, after years of mining, high-grade nickel sulfide ore has gradually been exhausted and replaced by low-grade nickel sulfide ore with high-alkaline gangue ( Zhen et al., 2008 ; Cui et al., 2017 ...
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2022.7.13 The co-processing of nickel laterite and nickel sulfide resources represents yet another potential opportunity in Western Australia given the proximity of nickel laterite and sulfide resources to each other and research into the effects of laterite mineralogy (limonitic vs clay silicate) and sulfide source (concentrate, whole ore, and high MgO ...
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2009.8.1 Section snippets Copper–nickel sulfide ore. The ore, from the Mt Sholl deposit, near Karratha, Western Australia, was crushed and screened and particles in the size range −. 6.7 + 4.75 mm were used in all column experiments.. A representative sample of the ore was pulverised for ancillary flask tests and for chemical and mineralogical
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2016.6.10 It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al.,
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2 天之前 2.2.sulfide processing 2.3.Ni Secondary resources 3. Disadvantages and alternative technologies 4. Strategies to improve nickel extraction 5. Conclusion and recommendation ... The ore is dried and nickel is selectively reduced (together with cobalt and some iron) to metallic nickel at ~ 700°C. The metallics are extracted by leaching in an
Read More1988.9.1 Currently, the main smelting processes of nickel sulfide ore involve flash smelting and pool smelting [19] [20] [21][22]. Spraying the deeply dehydrated powder concentrate from the top into the ...
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