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Nickel is crucial for a wide range of applications spanning from super alloys to lithium-ion battery cathodes. However, the largest consumer of nickel remains the stainless steel industry [], where ferronickel and ferrochromium are blended with other alloying agents to reach a target product composition [].Ferronickel grades of 5–25% …
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Replacement of cement clinker by industrial wastes has been verified as an effective way to reduce carbon emissions. To realize the application of blast furnace ferronickel slag (BFFS) in high volume in cement mortar, wet grinding was used to improve the activity of BFFS.Three fineness (D50 = 13 μm, 5 μm and 2.5 μm) and three …
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The objective of this paper is to investigate the effect of ball filling and ratio of feed to grinding balls on the kinetic of grinding of ferronickel slag in a laboratory scale ball mill. The experiments were started by crushing the ferronickel slag samples using a roll crusher to produce −3 mesh (−6.7 mm) product. This product, after sampling and …
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Phosphorus was removed by grinding and magnetic separation, and the phosphorus content in the reduced iron product was less than 0.10%. ... The ferronickel concentrate assaying 9.87% Ni, with a ...
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The use of electric furnace ferronickel slag (FNS) as a supplementary cementitious material is the current focus of research. This study investigates the effect of mechanical grinding and chemical additives on the activity excition of FNS, as well as the associated synergistic mechanisms. This study …
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The objective of this paper is to investigate the effect of ball filling and ratio of feed to grinding balls on the kinetic of grinding of ferronickel slag in a laboratory scale ball mill. The experiments were started by crushing the ferronickel slag samples using a roll crusher to produce -3 mesh (-6.7 mm) product. This product, after sampling and sample dividing …
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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 …
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Ferronickel slag is a by-product of nickel production. The discharge of ferronickel slag has gradually increased with the expansion of the scale of smelting for ferronickel alloys in China, which is a huge challenge for environmental protection. ... High energy consumption and grinding cost during the grinding process seriously limit the ...
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Fine grinding of the as-prepared ferronickel c oncentrates is beneficial to improve the iron and . nickel grades by separating the ferronickel particles from the concentrates. After carbothermal
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The use of electric furnace ferronickel slag (FNS) as a supplementary cementitious material is the current focus of research. This study investigates the effect of mechanical grinding and chemical ...
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The ferronickel particles are formed by aggregation and growing up of metallic iron and nickel and a small amount of gangue embedded in the ferronickel alloy particles. In addition, part of ferronickel particles embedded in gangue phase can be recovered in the magnetic product with extended grinding time and enhanced magnetic …
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Under the optimal conditions of CaF 2 addition of 9.85 wt%, carbon ratio of 1.4, and grinding time of 240 s, high-grade magnetically separable ferronickel …
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According to an embodiment of the present invention, there is provided a method for producing a ferronickel slag, comprising: grinding a ferronickel slag containing a grinding aid to produce a first ferronickel slag powder having a powder degree of 5,000 to 7,000 cm 2 / g; Pulverizing the first ferronickel slag fine powder to produce a second ...
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Ferronickel slag (FNS) is a solid waste produced in the smelting of ferronickel alloys. FNS is classified as blast furnace ferronickel slag ... (SCMs) in concrete after grinding into powder with specific surface area of 400–500 m 2 /kg. In addition, the physical and chemical characteristics of FNS are very close to those of natural sand. …
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In this study grinding of ferronickel slag was investigated in a laboratory ball mill, to determine the effect of grinding media size on milling efficiency using …
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Concrete is the most produced construction material in the world and has a close tie to carbon dioxide emissions. To reduce the gas pollution and resource drain of cement production and utilization, researchers have replaced some of the cement and natural aggregate content with industrial by-products such as steel slag, ferronickel …
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• Grinding • Flotation Leaching: • Nickel matte sulfate leaching • Nickel matte chloride leaching • Nickel concentrate sulfate leaching • Nickel concentrate chloride leaching • High copper content nickel matte chloride leaching • Nickel laterite leaching • Metallic Ni …
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This study analyzes the role and synergistic mechanisms of mechanical grinding and different chemical exciters in stimulating ferronickel slag activity using XRD and SEM methods. This provides a …
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Nickel—an element of the VIIIb group of the Periodic system of elements refers to the transition elements of the iron triad. Atomic number 28, atomic mass 58.71, configuration of the electron shell 3d 8 4s 2, density 8.92 g/cm 3, melting point 1451 °C and boiling point 2960 °C, exhibits a variable valence from 1 to 4, most often 2.Under normal …
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The activation of pozzolanic material in ferronickel slag can effectively be improved by mechanical grinding and steam curing at an early age. The excessive …
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The invention relates to a method for enriching ferronickel by carrying out micro treatment on laterite-nickel ore. The following technological steps are sequentially adopted: drying, mixing and grinding, roasting, water quenching, wet grinding and magnetic separating, the method is characterized in that the mixing and grinding process comprises the step of …
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The ferronickel slag tailings were physically activated by grinding in a ball mill for 2 h, 5 h, and 8 h, and the specific surface areas are 493.3 m 2 /kg, 530.7 m 2 /kg, and 721.2 m 2 /kg, correspondingly (abbreviated as AN, BN, and CN). And the particle size distributions of ferronickel slag powders with different grinding times are measured by …
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Petrakis, E.; Komnitsas, K. Effect of Grinding Media Size on Ferronickel Slag Ball Milling Efficiency and Energy Requirements Using Kinetics and Attainable Region Approaches. Minerals 2022, 12, 184.
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Minerals 2022, 12, 184 3 of 17 where K is the grinding rate constant, and M is a constant depending on the feed properties and grinding conditions. If M 6= 1 grinding follows non-first-order ...
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The grinding of FNS will provide business opportunities for Micro, Small and Medium-sized Enterprises ... Ferronickel Slag as Cementitious Material on Strength of Mortar, Key Eng. Mater. 931 (2022 ...
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Ferronickel is a ferroalloy consisting of nickel and iron. It is mainly used as a nickel additive for steelmaking, for the production of stainless steel and heat-resistant …
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The aim of this study is to evaluate the effect that the size of grinding media exerts on ferronickel slag milling efficiency and energy savings. A series of tests were performed in a laboratory ball mill using (i) three loads of single size media, i.e., 40, 25.4, and 12.7 mm and (ii) a mixed load of balls with varying sizes. In order to simulate the …
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This research intends to investigate the economic, energy and environmental aspects of mortar and concrete manufactured with ferronickel slag (FNS) as a substitute for cement and aggregate because ...
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The objective of this study is to improve the ball milling efficiency of ferronickel slag and determine the optimal grinding media size for which coarse particles are effectively …
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Tenova combines its proven Submerged Arc Furnace technology with its MAXICOOL® high intensity sidewall copper cooling system, together with an innovative cooling design for the critical alloy-slag tidal zone, to ensure a long furnace campaign life and high furnace availability for Ferro-Nickel production. Key furnace design parameters are optimized to …
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