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This paper first illustrates the production processes, properties, and …
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Here we deploy an integrated approach to mineralizing flue gas CO 2 using electric arc furnace slag while utilizing the reacted product as supplementary cementitious materials to establish a...
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Aluminium salt slag (also known as aluminium salt cake), which is produced by the secondary aluminium industry, is formed during aluminium scrap/dross melting and contains 15–30% aluminium oxide, 30–55% sodium chloride, 15–30% potassium chloride, 5–7% metallic aluminium and impurities (carbides, nitrides, sulphides and phosphides).
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The comprehensive utilization rate of steel slag in the United States was relatively high, reaching 84.4%, with the majority being utilized for road construction and civil engineering and a tiny fraction for cement preparation and fertilizer manufacturing. …
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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 significant …
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Steelmaking slags (both iron slag and steel slag) are by-products during iron and steelmaking process and have the same properties in the carbonation [30].Table 1 demonstrates that the main chemical components of steel slag are CaO, S i O 2, MgO, A l 2 O 3 and F e 2 O 3 [31].Like many previous report, steelmaking slag is mainly …
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Steel slag is the by-product during the separation of molten steel from impurities in the steel-making furnace. The basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag, and ladle furnace (LF) slag are three major types of SS produced in the steelmaking processes.As drawn in Fig. 2, BOF slag and EAF slag are both produced …
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The current utilization rate of steel slag is only 22% in china, far behind the developed countries. At present, the amount of slag deposited in storage yard adds up to 30Mt, leading to the ...
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Research and Progress of Nickel Slag's Comprehensive Utilization[J]. Multipurpose Utilization of Mineral Resources, 2018, (6): 25-31. doi: 10.3969/j.issn.1000-6532.2018.06.005. Ma Yongbo, Du Xueyan, Alibek Kakimov, Shen Yingying, Li Guozhou. Research and Progress of Nickel Slag's Comprehensive Utilization[J].
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Ladle furnace slag has been investigated for use as cementitious materials (Omar et al., 2021) and fillers (Jiang et al., 2018) and in applications such as soil remediation (O'Connor et al., 2021), sludge treatment, and CO 2 sequestration (Zhang et al., 2022), and the utilization prospects of this slag have been expanded. However, the …
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The novel full-chain blast furnace slag utilization system was established to achieve the purpose of high quality waste heat recovery and high value-added utilization. The technical feasibility of the integrated system was judged by theoretical and experimental analysis. Meanwhile, the economic evaluation of the system was …
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Utilization of iron & steelmaking slag It is known generally that industrial waste recycling and utilization save fundamental raw materials and energy sources and, in addition, contributes to
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Highlights. •. Steel industries are moving towards sustainable utilisation of …
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1. Introduction. Yellow phosphorus slag (YPS) is a kind of solid waste generated in the manufacturing process of yellow phosphorus [1], [2], which uses coke as a reducing agent and silica as a flux and heats phosphorus ore to 1350–1400 ℃ in a blast furnace.The CaO produced by the decomposition of phosphate ore reacts with SiO 2 to …
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To determine the best preparation condition for Fe-CSH, different steel slag/(Na 2 SiO 3 ·7H 2 O) mass ratios were investigated. Our findings indicated that the optimal steel slag/(Na 2 SiO 3 ·7H 2 O) mass ratio was 1:2. The maximum total surface area (913.7 m 2) was achieved under these conditions (more details are provided in the …
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As an industrial byproduct of smelter operations, smelting slag has brought certain environmental issues including without taking safety precautions or using appropriate management. Through a thorough analysis of the literature published in the last years, the latest research progress on the characteristics, resource utilization …
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The Utilization of Slag in Civil Infrastructure Construction 68 (Woodhead Publishing Cambridge, 2016). Google Scholar Fisher, L. V. & Barron, A. R. The recycling and reuse of steelmaking slags: A ...
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Coal gasification fine slag (FS) is a typical solid waste generated in coal gasification. Its current disposal methods of stockpiling and landfilling have caused serious soil and ecological hazards. Separation recovery and the high-value utilization of residual carbon (RC) in FS are the keys to realizing the win-win situation of the coal chemical …
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Utilization of steel slag in belite sulphoaluminate (CSA) clinker could improve the melting state and decrease the characteristic temperature of CSA clinker [10], thereby promoting the synthesis and production of ferrite-rich CSA clinker at 1260℃ [11]. ... The BOFS was from Shaan Steel Group Long Steel Company and was used as iron …
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Research and applied utilization activities for the increased use of ferrous and nonferrous slags in civil and highway construction are presented. The overall use of blast furnace slag is relatively well known for a range of highway construction applications from granular base to supplementary cementitious materials. In contrast to blast furnace slag, which is …
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Guo XJ, Ni XM, Ma D (2017) Copper slag treatment and comprehensive utilization. Nonferrous Met Eng Res 38(2):23–26. Google Scholar Wu L, Hao YD (2015) The investigation of utilization status of copper slag resources and efficient utilization. China Nonferrous Metall 2:61–64. Google Scholar
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Introduction. George C. Wang, in The Utilization of Slag in Civil Infrastructure Construction, 2016 Abstract. Slag utilization, in keeping with other by-products or nontraditional materials utilization, is a very broad subject covering a wide range of aspects.A book dealing with the comprehensive topics of slag utilization is …
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According to the utilization purpose of the slag, the structure of the slags …
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Sheridan studied the use of BOF slag and stainless steel slag (SSS) in …
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Qiang et al. stated that when cement is replaced with steel slag, at constant water binder ratio (W/B), it was seen that as the steel slag quantity is increased, the early strength goes on decreasing and at 30% of steel slag utilization; the compressive strength is much lower in comparison with normal concrete.
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Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during …
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The utilization of steel slag for industrial and construction purposes has gained significant attention in recent years due to its abundant availability and potential environmental benefits. This study explores the feasibility of utilizing steel slag as a coarse aggregate in concrete, aiming to determine the optimal replacement percentages for …
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FS, and the expansion of the field of the high value-added utilization of FS-RC. Keywords: coal gasification fine slag; residual carbon; pore structure; surface functional groups; microcrystalline structure; flotation sep-aration; resource utilization 1. Introduction Gasification is an essential way to achieve the clean and
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The steel slag is divided into converter (basic oxygen furnace, BOF) slag and electric arc furnace (EAF) slag according to the steel making process that is used, and EAF slag is divided into oxidizing slag and reducing slag. 6.1.1 Generation and Utilization of Steel Slag The discharge of steel slag accounts for appropriately 17% of crude steel ...
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Large amounts of copper slag are produced every year and major fractions of it are currently disposed, not withstanding the multiple ways the material can be used. Application of the slag is often limited by the presence of hazardous elements and their leaching behavior so they can potentially pollute soil, surface water and underground …
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