Process., 19: 189-198. Hyuga Smelting Co., established by Sumitomo Metal Mining Co., started the production of ferro-nickel by the sintering-electric furnace process in September 1956. In accordance with the rapid increase in market demands, the company made a steady growth, expanding the production capacity from 30 to 200 tons of nickel per month.
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smelting of calcines with low Fe/Ni ratios results in significant carbon and silicon contents in the ferronickel because when low grade alloys are produced the FeO content of the slag is much …
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Nickel processing - Extraction, Refining, Alloying: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are …
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For producing ferronickel pyrometallurgically, there are also such processes as the sintering-blast furnace reduction smelting and the sintering-electric furnace reduction smelting. But these processes will be gradually eliminated for small production scale, high energy consumption, and poor environmental protection.
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Ferronickel, produced from the thermal upgrading of nickeliferous ores, is one of the feed materials for stainless steel production. However, traditional high-temperature smelting processes for producing ferronickel are facing increasing pressure due to environmental concerns and decreasing ore grades. The pyrometallurgical processing of low-grade laterites, aimed at …
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The sintering-blast furnace process, which includes the sintering of laterite ores in a sintering machine, followed by smelting in a blast furnace, involves high-energy consumption and heavy environmental pollution.
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The world's Primary Nickel Production in 2023 was about 3.37 million tons with a growth rate of 10.2% YOY. ... of roasted material or HPAL of ores followed by solvent extraction, electro-winning and sintering of metal powder into a nickel compact. In general ... (1987) Development of ferro-nickel smelting from laterite in Japan. ...
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In our previous study, smelting slag contained appropriate 20–30 wt.% liquid compositions at 800–1000°C and 70–80 wt.% at 1200°C (Ding et al., 2020). The formation of liquid slag can significantly facilitate the sintering of green body, further improving the mechanical properties of products.
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Two-thirds of the global nickel output can be attributed to the rotary kiln-electric furnace process. Due to the high contents of MgO and SiO 2 in laterite, a high temperature (∼1600 °C) and corresponding energy (approximately 14 GJ/t-ferronickel) are required during the electric furnace smelting. This work verifies the feasibility of decreasing the smelting …
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stainless steel production industry. Its usage as low grade ferronickel or nickel pig iron (NP!) in stainless steel production is a relatively new trend to reduc. the cost of high grade ferronickel. …
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Nevertheless, the extensive sintering tests and industrial production of limonitic nickel laterite have demonstrated that its sintering performance is much poor due to its exorbitant contents of crystal water and high smelting components, which is a huge hindrance for the effective utilization of low-grade limonitic nickel laterite [9,10,11].
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CO2 emissions can be annually reduced by 112.62 thousand tons in sinter production for a major Chinese stainless steel enterprise. ... limonitic nickel laterite sintering was strengthened via the ...
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The aim of this research was to study the recycling process and the feasibility to smelt the spent nickel catalyst for the production of nickel alloy or ferronickel. The smelting process was carried out in a laboratory induction furnace. The effects of SiO2/CaO for slag forming on metal recovery and smelting time were investigated. Petroleum coke was used as reductant.
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This invention provides a technology for smelting ferronickel of a nickel oxide ore containing water of crystallization including crushing and sieving the original ore to produce the powder to sintered ore blocks, in which, the sintered blocks, coke, limestone/calcium lime, dolomite and cand are mixed and matched to be smelted in a blast furnace to get the ferric nickel and the weight ...
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This study aims to study the smelting process of limonitic laterite nickel ore. The smelting process was performed using a Mini Blast Furnace pilot plant with a capacity of ten tons of ore per day ...
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The sulfide smelting method for nickel laterite ore involves mixing the raw ore with sulfidizing agents, reducing agents, and fluxes, followed by smelting at 1300–1500 °C to …
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Nickel Refining Various processes are used to refine nickel matte. Fluid bed roasting and chlorine-hydrogen reduc-tion produce high-grade nickel oxides (more than 95% nickel). Vapor …
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Sinter indices of limonitic nickel laterite are very poor due to the large loss on ignition and high formation temperature of liquid phase. For the better sinter consolidation characteristics of limonitic nickel laterite, the hybrid sintering technology was applied and a low-melting additive was added in the sintering process. The synergistic action of the two factors …
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In 2011, the nickel production in China amounted to 446 kilotons, with the proportion of electrolytic nickel and nickel pig iron (NPI) registering 41.5% and 56.5%, respectively.
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Outotec® Nickel Flash Smelting Process is a benchmark nickel-smelting method and a clear global leader in the world's primary nickel production from sulfide raw materials. Efficiency and improved environmental and in-plant hygiene have …
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Semantic Scholar extracted view of "Material and energy flows in rotary kiln-electric furnace smelting of ferronickel alloy with energy saving" by P. Liu et al. ... Evaluation and synergy of material and energy in the smelting process of ferrochrome pellets in steel belt sintering-submerged arc furnace ... In 2011, the nickel production in ...
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Based on a detailed overview of nickel utilization from laterite ores, it provides the advances of four main methods for laterite ore processing, including the solid-sate reduction-magnetic separation process, the rotary kiln …
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Nickel pig iron (NPI) production has been experiencing robust development recently in China. For NPI production by smelting technology in either a blast furnace or an electric arc furnace, sintering is imperative to supply a qualified feedstock.In this research, the sintering behaviors of saprolitic nickel laterite with various quaternary basicities ((CaO + MgO)/(SiO 2 + …
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A production technique of smelting high-magnesium-low-Nickel-Chromiummine to low-Nickel-pig iron, includes sintering processes of the mine and smelting processes of the sintered mine, setting up an ore proportioning process before the said sintering process (allocating by weight ratio than 100 original ore and 8-15 calcium oxide powderized ore).
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The two main processing methods for laterite ores are smelting and High-Pressure Acid Leaching (HPAL). Smelting is used primarily on saprolite ores to obtain an iron-nickel …
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The mineralogy and sintering behavior of limonitic nickel laterite with high iron and low nickel and silica was studied to offer technical support for producing ferronickel through sintering-blast ...
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As the demand for nickel continues to rise, understanding the nickel processing process becomes crucial. This comprehensive guide aims to provide a detailed overview of the nickel processing journey, from ore …
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amount of NLOs (mostly under 5%) in the sintering mixture and smelting in BF to reduce costs, not to produce the nickel-iron. However, due to low ratio of NLOs in the sintering mixture, the ...
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China is smelt to produce ferronickel (comprising nickel-contained pig iron) the first big country with laterite-type nickel ore in the world, and big or small hundreds of smeltery is arranged.Wherein, smelting process used has respectively blast furnace process, local method sintering-electric furnace reduction smelting, sintering machine sintering-electric furnace …
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Chapter 6 Copper Production Technology . Chapter 6 Copper Production Technology The last boomin technological innovation for the copper industry occurred in the first two dec ades of this century whenopen pit mining flo The Egyptian copper smelting furnace was filled with a mixture of copper ore charcoal and iron ore to act as a flux It was blown for several hours by foot or hand
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This study reviews the current status of the nickel smelting processes as well as the trend in production amount and use. Nickel is extracted by a wide variety of smelting methods depending on the type of ore. ... produced by powder metallurgy processing, pressing, and sintering. Nickel improves mechanical … Expand. 5. PDF. Save. The past and ...
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With the increasing consumption of high grade sulfide nickel resources due to the rapid growth of stainless-steel industry, nickel laterite (NL) ore, accounting for over 70% of the land-based Ni reserves, has been become a major raw material for Ni production [1], [2].However, NL ore, consisting of complex minerals, is characterized as a low-grade material with high …
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It is basically a self-heating process. It can use a fluidized bed roaster (fluidized bed furnace), a linear sintering machine. ... Ausmelt submerged top-blown furnaces are used to produce low-grade nickel matte by smelting nickel concentrate in Jinchuan Group Co., Ltd. and Ji Lin Ji En Nickle Industry Co., Ltd., with an annual output of 60,000 ...
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Limonitic nickel laterite always contains abundant high smelting components such as Al 2O 3 and MgO, ... from the demand of blast furnace production.12–14) Thus, sintering performance of limonitic nickel laterite must be ... During sintering, limonitic nickel laterite and anthracite were adopted as the only iron-bearing raw material and
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