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1. Introduction. Nickel slag is produced during nickel smelting, during which producing 1 ton of nickel can discharge 6–16 tons of waste residue [1].According to the February 2020 monthly report of the World Bureau of Metal Statistics (WBMS), the global refined nickel output in 2019 was 2.4 million tons, based on which the global nickel slag …
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EAF slag is a strong and durable material which is highly versatile and ideally suited for use as an aggregate in many applications. The slag derived from stainless steel production presents particular challenges, owing to the handling of fines in its cooled state. Harsco will process Electric Arc Furnace (EAF) and Argon-Oxygen Decarburization ...
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The invention belongs to the technical field of metallurgical engineering and environmental engineering, and relates to a method for efficiently recovering nickel and copper metal from nickel smelting slag. The method comprises the following steps: (1) crushing: crushing the nickel smelting slag to obtain nickel slag particles; (2) reduction-sulfidation roasting: …
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THE STANDARD Jaw crusher was specially designed for the slag recycling industry. It has the unique patented H ydraulic R elease M echanism ( ) to guarantee continuous crushing. No blockage when uncrushable materials like metal hit the crusher. When an uncrushable object like tramp iron gets into the crusher chamber the predetermined …
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To recover iron from water-quenched nickel slags, CaO was added. Thermodynamic analysis showed that CaO promotes the reaction between fayalite (Fe2SiO4) and O2. Phase diagrams of the FeO-SiO2-MgO-CaO slag with various CaO contents in an air atmosphere drawn by FactSage 7.1 showed that the phase …
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12-07-2016· Nickel slag recycling is currently another emerging industry slag after steel slag,water slag and other industrial waste recycling, Chaeng(Xinxiang Great Wall Machinery) Production GRMS series vertical slag mill plays a huge role in the recovery of nickel slag grinding process, the current Chaeng can to complete the 300,000 tons ...
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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 …
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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 …
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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. …
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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. After this melt …
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It can be found that when MgO content in the slag exceeds 7.65 wt%, the formation of the olivine phase will inevitably lead to the higher melting temperature of nickel slag more than 1300 • C.
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Physical separation methods, including magnetic separation and gravity separation, were reported to recover nickel and chromium from the EAF slag or AOD slag in some commercial practice in the 20th century (Lopez et al., 1997b; ... a SSS slag recycling process was proposed. In the process, sodium hydroxide and sodium nitrate …
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Abstract. Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel …
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A new process of treating nickel leaching slag with converter has been proposed in the article.Under the optimum conditions,that adding 3% carbonaceous,10% siliceous flux and 7% calcareous flux in the temperature of 1300℃ for 30min.The results from lab and industrial experiments show that the recovery ratio of Ni,Cu is 96.18% and 96.85%,and …
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Recycling slag saves valuable resources and reduces the amount of waste generated. Improved efficiency. Active Setting Control technology enables processing slag that contains uncrushable objects. Increased profitability. Recycled and processed slag can be sold and used for example as aggregates. Safety. Fully automated operation.
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Steel slag is one of the most common waste products from the steelmaking industry. Conventional methods of slag disposal can cause negative impacts on humans and the environment. In this paper, the process of steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed. Since steel …
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The generation process of EFS is as follows (Liu et al., 2016): nickel ore (sulfide ore, garnierite ores) is mined, crushed, ground, dried in a rotary kiln (750–800 …
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The possibility of hydrometallurgical processing of converter slag from nickel production aimed at integrated use of mineral raw materials and environmental …
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The chemical composition of nickel laterites NA and NB from Philippines and Indonesia, respectively, used in this study, was assayed quantificationally by according to the Chinese non-ferrous metal industry standard YS/T 820–2012 combined with the Chinese standard GB/T 14506–2010, and the results are presented in Table 1. Table 1 …
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slag. Nickel is present in the slag in the form of an (Fe, Ni)S phase which takes the form of individual inclu-sions that became part of the slag via a mechanical route and cannot be reliably identified. The nickel-iron in-clusions have an Fe:Ni ratio of 1:1 to 5:1. The glassy slag contains 0.5–2 vol% iron-chromium spinel.
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Nickel slag is a byproduct obtained from the smelting and refining process of nickel-containing ores. It possesses desirable properties, such as low water absorption, high strength and good ...
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The predigestion life cycle assessment (LCA) method has been applied to investigate the environmental impact of the recycle copper process from copper-slag. Related environmental load data of each process stage have been obtained. Copper-slag recycle copper process includes crushing, milling, flotation, dehydration. Environmental impact …
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The main equipment of this Nickel-iron Slag Treatment Plant includes a jaw crusher, screen, jig machine, rod mill, and other equipment. ... The biggest advantage of this scheme is that it can recycle coarse-grained alloys in advance to avoid large pieces of nickel-iron alloys from damaging the crushing equipment. At the same time, it can ...
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Nickel Slag Air-cooled nickel slag is brownish-black in color. It crushes to angular particles but has a smooth, glassy texture. The specific gravity of air-cooled nickel slag may be as high as 3.5 (15), while the absorption is quite low (0.37 percent). (3) The unit weight of nickel slag is somewhat higher than that of conventional aggregate. ...
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Brass foundry reclaims $321,867 from brass slag in three months with the DIDION Rotary Slag Tumbler / Metal Reclaimer. Iron Casting Foundry turns waste into money with a metal recovery system from Didion. DIDION …
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Recycling Nickel Slag by Aluminum Dross: Iron-extraction and Secondary Slag Stabilization. Guangzong ZHANG, Nan WANG,* Min CHEN and Yanqing CHENG. …
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DOI: 10.1016/j.jnoncrysol.2023.122775 Corpus ID: 266248608; Molecular dynamics study on the DOP evolution of slags during recycling nickel slag by aluminum dross @article{Zhang2024MolecularDS, title={Molecular dynamics study on the DOP evolution of slags during recycling nickel slag by aluminum dross}, author={Guangzong Zhang and …
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Arsenic (As), a toxic element and Pb, a heavy metal also exist in some copper slags. As shown in Table 1, almost all the copper slags contain a considerable amount of Cu (0.5% – 2.7%) and Fe (31.7% – 40.3%), which come up to or even higher than those of some general Cu and Fe ore mines.
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Abstract. Nickel slag (NS), generated mainly during nickel (Ni) smelting, and classified as a potentially harmful solid waste, is an important secondary resource …
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The slags derived from nickel contain more than 98% Fe and Co, and 54 -95% Ni and Cu in the oxide form depending on the treatment method and the type of the furnace. Whereas, there are less than 2 ...
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