Utilization of nickel slag using selective reduction followed …
The results show that increasing the basicity (mass ratio of CaO to SiO 2) of nickel slag facilitates the enrichment of nickel and copper. The process parameters for selective reduction were optimized as follows: basicity of 0.15, reducing at 1200 °C for 20 min, 5% coal on a dried slag mass base. The grinding-magnetic separation results of ...
The effect of addition of sodium sulphate (Na2SO4) to nickel slag
The research was preceded by preparation of nickel slag samples with crushing and sieving up to 200 mesh. The nickel slag is then reduced at 800°C, 900°C and 1000°C temperature without adding ...
Alkali–silica reactivity of cementitious materials using ferro-nickel …
Nickel slag is a byproduct obtained from the smelting and refining process of nickel-containing ores. It possesses desirable properties, ... After crushing and/or grinding, ...
Ore, Mineral, & Slag Crusher
Mineral Crushing Machines. Stedman impact crushers, mills, and grinders are used in nearly every mineral, ore, and mining application. Whether you are processing iron ore, coal, rock, salt, wood chips, or clay – to name a …
Alkali–silica reactivity of cementitious materials using ferro-nickel …
Ferro-nickel slag (FNS) is a byproduct of the ferro-nickel from the nickel ore refinement process. ... The air-cooled FNS (FNS-A) appears gray (visually), is lumpy after cooling, and hence crushing is required to render it useful as a fine aggregate [6]. The crushed FNS-A contains many fine particles, and can therefore be used as a modifier for ...
(PDF) Simulation of precious metals recovery …
High-pressure oxidative acid leaching (HPOXAL) is a suitable process for the nickel smelter slag with the parameters of the leaching process as the following: the particle size about – 150 + 74 ...
The Effect of Nickel Slag Concentrationas Coarse …
The results of this study indicate that the use of nickel slag as a substitute for coarse aggregate for 20 MPa concrete, and unable to achieve the planned average compressive strength of 20 MPa ...
Waste to wealth: Recovery of value-added products from steel slag
Abstract. Steel slag, a by-product generated during steel production poses a solid waste disposal challenge. The same slag contains valuables such as titanium, nickel, vanadium, iron, aluminum, silica among others. The extracted components can cause productive value addition in diverse realms like wastewater treatment to semiconductor …
Choosing The Right Crusher | Mellott
Contact us today at 855-554-1606 or email at sales@mellotts for more information. This entry was posted in Blog. Bookmark the permalink . Choosing the right crusher for your rock processing needs. Mellott provides expertise and equipment for efficient and effective material crushing.
A Study of the properties and microstructure of high-magnesium nickel
This research aims to use high-magnesium nickel slag crushed into a powder as a replacement for cement and to study their properties and microstructure in concrete. The particle diameter of the nickel slag powder was obtained lower than 75 μm after a process of crushing and sieving. The specific areas, absolute dry densities and particle size ...
Nickel industry: Heavy metal(loid)s contamination
Smelter slags are mostly granulated wastes formed by air cooling or water spraying of a melt produced during the smelting process of nickel ores or concentrates [9, 12].Depending on feed and process conditions, smelter slags contain several oxides such as Fe x O y, Al 2 O 3, SiO 2, and MgO.It is estimated that for the production of 1 ton of …
Recycling of Nickel-Slag Tailings into Liquid …
The first step is to hold the slag/metal melt in a crucible for 15 min at 1300–1400°C, resulting in formation of a nickel-rich (15–18%) matte melt at the bottom. …
Recovery of Valuable Metals from Nickel Smelting …
The nickel converter slag was provided by Kalgoorlie nickel smelter and collected from a historic pile. The slag was prepared by a combination of jaw crushing, …
Recycling of Nickel-Slag Tailings into Liquid Products: A
Since the liquid glassy nickel slag has density 2–3 g/cm 3, the crushed electrode material sinks and reduces the iron as it react with the iron. The crucible walls also play a role in the reduction process. The reduced iron also collects nickel, sulfur, chromium, and cobalt. These elements have much higher solubility in iron than in the ...
Nickel processing
Nickel concentrates may be leached with sulfuric acid or ammonia, or they may be dried and smelted in flash and bath processes, as is the case with copper. Nickel requires higher smelting temperatures (in the range of 1,350 °C [2,460 °F]) in order to produce an artificial nickel-iron sulfide known as matte, which contains 25 to 45 percent nickel.In the next …
(PDF) Nickel Laterite Smelting Processes and Some
A slag obtained from a ferro-nickel smelter in China was mixed with sintered magnesia of 94.5% purity and briquetted. The sintering of the briquettes was performed using a mu ffl e furnace in the ...
Pemanfaatan Limbah Slag Nikel sebagai Bahan Perkerasan …
Bentuk fisik limbah slag nikel yang menyerupai batu alam, menyebabkan potensi sebagai bahan jalan sangat dimungkinkan. Di beberapa daerah, slag nikel bahkan telah dimanfaatkan masyarakat sebagai bahan paving block dan batako. Namun penyerapan volume limbah slag nikel pun sangat rendah yaitu 1% dari volume limbah …
Technospheric mining of critical and strategic metals …
Recovering valuable metals from secondary sources can be categorised as technospheric mining. In this study, the extraction of cobalt and nickel from nickel slag …
Alkali–silica reactivity of cementitious materials using ferro-nickel …
Ferro-nickel slag (FNS) is a byproduct of the ferro-nickel from the nickel ore refinement process. ... In contrast, the FNS-W that was water-cooled without crushing consisted of coarse particles whose sizes exceeded the limit specified by the ASTM C 33 standard. The FNS-W consisted predominantly of 0.6–5-mm-sized particles, and had a …
(PDF) Prospective Life Cycle Assessment at Early Stage of …
nickel slag, whereas steel slag is most commonly studied for CCU ... Crushing and grinding are assumed, per kg slag, to consume. 0.014752 kWh of e lectricity, then 0.006 MJ for mechanical handling
Hot-Mix Asphalt that Contains Nickel Slag Aggregate: …
Nickel slag contains a notable amount of Co and Ni and is known to be mineralogically and physically stable as it can be used as an aggregate for concrete (Wang et al., 2011). Compared to the ...
Converter Slag
The converter slag from both the nickel and copper converting, which contain approximately 2% Ni, 1.5% Cu, 40% Fe, and 25% SiO2, are returned to the furnaces to recover the base metal. Oxides form slag that is skimmed off and is processed in an electric furnace prior to discard to recover nickel.
(PDF) Value Of Indirect Tensile Strength And Deformation On …
Nickel slag can anticipate the use of natural aggregates in the mixture design of road pavement (36). Figure 2a) shows the effect of adding nickel slag as a fine aggregate to the strain. The percentage of nickel slag is 0%, 25%, 50%, 75%, . The value of the strain has decreased in the addition of 25% nickel slag.
Nickel mining: the hidden environmental cost of electric cars
Dr David Santillo, a senior scientist at Greenpeace Research Laboratories, says : "The mining of nickel-rich ores themselves, combined with their crushing and transportation by conveyor belt ...
Utilization of nickel slag as raw material in the production of
The modification stage begins with the preparation of NS through the crushing process. The NS powder was put into the Hydrothermal Autoclave Reactor, heated at 180 °C for 2 h, calcined at 600 °C, and incorporated into the carbon paste electrode (NS/CPE) through mass variation. ... Nickel slag (NiS), an industrial waste …
Stainless Steel Slag/Nickel Slag Processing Line
Introduce Stainless Steel Slag Processing IMAG2258. The solution is designed according to the nature characteristics of nickel-iron slag, using the concept of recovering coarse particles before fine particles, which avoids the damage to the crusher caused by large pieces of nickel-iron alloy that cannot be crushed.
(PDF) Study on Physical-Chemical Properties of Furnace-Nickel-Slag
The research was preceded by preparation of nickel slag samples with crushing and sieving up to 200 mesh. The nickel slag is then reduced at 800°C, 900°C and 1000°C temperature without adding sodium sulfate and by adding sodium sulfate with 1 hour holding time. Furthermore, the results of the reduction is done XRD and AAS testing to see ...
Frontiers | Prospective Life Cycle Assessment at Early Stage …
Pyrometallurgical nickel industry in New Caledonia produces several tons of slag per year, which is stocked on site. There is no valorization today, except for a small transformation into sand. Pyrometallurgy highly consumes fossil-fuel energy and electricity for ore pre-treatment and nickel extraction inside electrical furnaces, which produces …
Development of Alkali-activated Cementitious Material using Copper Slag
Copper Slag has a specific gravity in the range of 3.4–3.7 and consists of Fe (30–40%), SiO 2 (35–40%), Al 2 O 3 (<10%), CaO (<10%) and Cu (0.5–2.1%) [12]. It was estimated that in the smelting process, 2–3 times more CS is generated than copper and approximately 24.6 million tones of CS is generated annually worldwide [12]. Copper ...
Slag crushing
The ASC protects your crusher against overloading. When a jaw crusher is equipped with the ASC system, the crushing forces are carried by massive hydraulic cylinders mounted into the rear header casting. If an uncrushable object enters the crusher cavity and crushing forces reach the preset maximum level, oil starts to escape out of the ...