Similarly, discussed the high iron content of copper smelting slag and its potential applications in value-added products, such as abrasive tools, roofing granules, and road-base construction, emphasizing the potential for recycling metal values from the slag (Wang & Erdenebold, 2020). Furthermore, highlighted the significant iron content in ...
Looking at the merits and associated benefits, some of the top steel-producing countries have adopted or upgraded with a recycling technique of steel slags from time to time for various applications (as shown in Fig. 3), such as for road construction, soil enrichment, cement production, etc. Notably, recycling steel slag for a particular …
The obtaining clinker from ladle slag is a more complex technological task than obtaining pig iron from an electric furnace. Therefore, the researchers first calculated the conditions necessary ...
Waste water-cooled granulated iron slag was ground and added in proportions ranging from 0 to 30 wt.% to kaolin clay to prepare roof tiles for the economic purpose of decreasing the production cost by incorporating cheap waste and …
Steel slag recycling is a serious problem in China. The volume of steel slag is growing rapidly because the output of steel is steadily increasing; however, slag's utilization remains relatively low. ... (granulated blast furnace slag (GBFS), iron ore tailings (IOTs), steel slag (SS) and desulfurization gypsum (DG)), and the influence on the ...
Particular attention is paid to converter slag recycling in the metallurgical processes of JSC ArcelorMittal Temirtau, in which converter scrap is utilized as part of the sinter charge. ... A generalized analysis of the data on the yield of slag processing products and the iron content of scrap and dump slag indicated the total amount of ...
Steel slag contains vanadium, iron, titanium, chromium, manganese and other valuable elements, which have the value of recycling. Therefore, it is not only necessary to pay attention to the recovery of a single element, but also to study the collaborative recovery technology of many metals to realize the efficient utilization of …
We used these research results to develop a scheme for commercial-scale recycling of SUNP slag waste, with the matte being separated from the slag in an ore smelting furnace, and the iron being separated from the slag in a ladle furnace; in the latter case, the resulting metal can be refined to GOST specifications.
Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals, and saves a lot of natural resources and energy. This paper firstly …
Slag landfills can emit heavy metals to the environment (soil and water) for very long time periods what represents a high environmental impact. Instead of storing …
The slag generated by the steel plant has been utilized to produce submerged arc welding flux. The flux produced by recycling steel slag has been applied in the submerged arc welding process. The effects of recycled slag on the chemical composition, microhardness, and microstructure of weld metal have been evaluated. For …
Slags are almost completely reused or recycled in Japan. However, due to stagnant infrastructural investments, future applications of slags in conventional sectors …
DOI: 10.1016/j.jece.2023.110973 Corpus ID: 261634373; Recovery of low phosphorus iron from steel slag using secondary aluminum dross as the reductant @article{Xu2023RecoveryOL, title={Recovery of low phosphorus iron from steel slag using secondary aluminum dross as the reductant}, author={Lei Xu and Xubiao Li and Yang …
Efficient recycling of iron oxide from industrial BOF (basic oxygen furnace) slags has always been an issue in metallurgy. In this study, a new method was developed for the efficient recycling of iron oxide: It was transformed into magnesioferrite spinel (MgFe 2 O 4) by mixing the industrial BOF slag with 6.00% SiO 2 first, and then the …
In a pathway based on energy recovery and resource recycling of glassy blast furnace slag and crystalline steel slag, we show that a reduction of 28.5 ± 5.7% CO2 emissions to the sectoral 2 °C ...
slag and various methods for its recovery and utilization, emphasizing its potential for iron recycling and its environmental benefits. 1.1 Properties The copper slag particles are blackish and possess a shiny surface. The table provided outlines the typical physical attributes of standard copper slag (Table 1).
Today, cement and concrete are some of the most consumed materials after water throughout the whole world. About 4.1 billion tons of cement are fabricated annually (half a ton per person) and half of this amount is produced by China [5].In addition, >1 m 3 of concrete per person is produced with Portland cement each year [6].Today, …
The main objectives of our study is to review: (1) the various carbon sequestration techniques; (2) the application of iron and steel slag in carbon sequestration; (3) the applications of iron and steel slag in the environmental remediation, (4) carbon sequestration mechanism of steel slag; (5) mechanisms for environmental remediation …
1. Introduction. Slag examined in this study is defined as the predominantly silicate and oxide by-product derived from smelting metallic ore. The two main types of slag included in this discussion are from the primary production of ferrous ores, from iron and steel manufacturing, and from non-ferrous ores, from the recovery of base metals and …
During steel production, the impurities in the hot metal react with the fluxes forming the steel slag. Chemical constituents of this steel slag (SS) are relevant to iron/steelmaking or blended cement manufacture. Harmful impurities present in it, however, limit its recycling to these applications. Japan, Europe, and the US consume a …
Recycling: Following removal of entrained metal, slag can be returned to the blast and steel furnaces as ferrous and flux feed, but data on these returns are incomplete. Entrained metal, particularly in steel slag, is routinely recovered ... 2021, world iron slag production was estimated to be between 340 million and 410 million tons, and steel ...
Application of electromotive force between molten iron–carbon and slag is shown to decarburize iron. Electrorefining decarburizes by direct interfacial electrochemical reaction, resulting in low ...
The smelting slag mentioned above refers to iron capture smelting slag. Compared with other metals, iron capture is a cost-effective and environmentally friendly method. Among the various iron capture methods, plasma smelting is more efficient [32]. However, this method faces several challenges, including the need for significant equipment ...
Iron grain growth during deep reduction roasting is important for iron enrichment from copper slag (CS) through magnetic separation. In this work, a novel method of additive-free activation roasting, including oxidation and subsequent reduction roasting, was proposed to increase the iron grain size, then the iron was extracted by magnetic separation.
In particular, the annual amounts of iron slag and steel slag globally generated were estimated to be 390 Mt and 290 Mt, respectively, in 2022. ... Given its composition, rolling mill scale sludge has a substantial iron content, making it suitable for iron recovery or recycling processes [89]. Its iron content makes this sludge a valuable ...
Metal Losses to the Slag in Smelting and Converting. 80% of the copper produced from ores worldwide originates from sulfide ores. The copper concentrate which results from flotation of the ore is typically smelted and converted to blister copper [].During smelting S and Fe are oxidized, where SiO 2 is added to form a liquid ferric or ferrous …
The low-carbon and high-value utilization of iron and steel slag will be a new green revolution, and the realization of this green revolution is the only way to realize the …
Slag Reprocessing Methods. Mining slag can also be reprocessed to recover low-grade ores using hydrometallurgy techniques. A study used sulfuric acid to …
2 BLAST FURNACE SLAG AND STEEL SLAG CARBON REDUCTION RESOURCES RECYCLING. BFS, a by-product of the iron-making process in blast furnaces, primarily consists of silicates and aluminates. Approximately 95% of the total chemical components in BFS are oxides of Si, Ca, Mg, Al, and Mn. In addition, BFS …
The fayalite in copper slag transforms into metallic iron and sodium silicate salt in the activated reduction process, after the following water-leaching and magnetic separation, about 76% of silicon dissolves into the leaching solution and the metallic iron powders with a recovery rate higher than 90% is obtained. ... J. T. Zhao, "Recycling ...
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