slag related to recycling
The recycling and reuse of steelmaking slags — A review
2019.7.1 The transformation of steelmaking slag into a strong structural material through high gravity carbonation (Chang et al., 2012). Now known as the carbstone
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Slag Metallurgy and Metallurgical Waste Recycling JOM
2016.7.29 The following papers being published under the topic of Slag Metallurgy and Metallurgical Waste Recycling embody the development of modern technologies for
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The recycling and reuse of steelmaking slags — A review
2019.7.1 In order to lower the environmental impact of the steel industry and ensure its economic sustainability, there have been significant studies finding the ways to
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Recycling of ironmaking and steelmaking slags in Japan and
2022.4.6 The treatment of ironmaking and steelmaking slags is a great challenge in the sustainable development of the steel industry. Japan and China are two major steel
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Recycling of ferrous slag in agriculture: Potentials
2020.12.7 This review broadly and critically explores the available information concerning the effective recycling of slag in agriculture and its potentials in crop yield, soil conditioning, greenhouse gas (GHG)
MoreSlag Metallurgy and Metallurgical Waste Recycling
2017.8.28 Arc Furnace Oxidizing Slag by Al-Fe Alloy,’’ Jae-hong Lee et al. explored the kinetics of aluminum reduction of molten slag using Al-Fe alloy. It was demonstrated
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The recycling and reuse of steelmaking slags -A review
2019.4.8 The recycling and reuse of steelmaking slags -A review DOI: 10.1016/j.resconrec.2019.03.010 Authors: Lucy Fisher Swansea University Andrew R.
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A new process to recycle metallurgical slag - Phys
August 11, 2021 A new process to recycle metallurgical slag by Ural Federal University Credit: CC0 Public Domain Researchers at Ural Federal University (UrFU) and the
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Treatments and Recycling of Metallurgical Slags IntechOpen
2018.11.7 Choi et al. described two possible methods to recycle ladle slag: (a) by pouring molten ladle slag to another ladle, at time (taking advantage of the heat) and (b)
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【佳文推荐】周朝刚： 转炉含磷钢渣循环利用技术的研究现状 ...
2022.7.8 Key words： converter；slag containing phosphorus；recycling；dephosphorization of steel slag；phosphorus resources 转炉含磷钢渣是在炼钢过程中为了去除钢液中的杂质而产生的一种含有大量铁、钙、硅等氧化物和磷资源的副产品，具有重要的回收利用 ...
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BOF Steel Slag: Critical Assessment and Integrated Approach for ...
2021.9.24 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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钨冶炼渣综合回收利用的研究进展 - USTB
钨冶炼渣 /. 钨冶金 /. 萃取 /. 浸出 /. 综合利用. Abstract: Tungsten smelting slag is an important secondary resource, it contains tungsten, tin, tantalum, niobium, scandium, and other useful metals, which have great recycling value. However, tungsten smelting slag is a solid waste that can cause groundwater and soil pollution.
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Open Access proceedings Journal of Physics: Conference
2022.6.6 the for Rational Slag Recycling Methods A A Tyutrin, N V Nemchinova and A N Baranov Department of Metallurgy of Non-Ferrous Metals, Irkutsk National Research ... recently, increasing attention is paid to research related to ferrous slag waste recycling technologies development. Nowadays, up to 190 kg/t and 280 kg/t of
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Basic oxygen furnace slag for road pavements: A review of
2017.9.1 Road performance challenges related to BOF slag’s volume expansion property, moisture damage susceptibility and leaching of heavy metals have also been highlighted in the article. ... This study provides an opportunity to advance the understanding of enhancement mechanism of surface texture by recycling steel slag. Utilization of steel
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Recycling of steel slag aggregate in portland cement concrete
2021.2.1 Production and recycling. The chemical composition and physical characteristics of steel slag are closely related to the raw materials and production process for steelmaking. In order to increase the utilization rate of steel slag, it is necessary to improve the treatment methods and the recycling modes according to the quality of the
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A Review on Recycling and Reutilization of Blast Furnace
2021.6.3 A large amount of dust is formed as one of the primary by-products during the blast furnace ironmaking process. Besides iron and carbon, it contains a variety of valuable metals such as zinc, lead, and indium widely applied in many industry fields. However, it is difficult to recycle and reutilize blast furnace dust (BFD) due to complex
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A Review on Reclamation and Reutilization of Ironmaking
2018.12.12 In terms of the environmental and economic benefits of slag recycling, there iare significant un-utilized or disposed portions of the slags that have the potential to be more effectively utilized. ... In addition, the electrical conductivity of the EAF slag for remelting is directly related to the electricity system and heat distribution, which ...
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Recent Development in Slag Treatment and Dust Recycling
2009.10.1 Slags from metallurgical processes are widely used in different fields of application, e.g. in the building industry and as fertilisers. Nevertheless, also these by‐products have to be improved to ensure their sustainable use. The treatment of liquid slags, e.g. by changing their composition outside of the steel production process, will
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Characteristics and environmental aspects of slag: A review
2015.6.1 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
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Current Development of Slag Valorisation in China - Springer
2014.2.19 Slags are byproducts of the metallurgical industry. It is of importance to recycle materials and recover heat from metallurgical slags to reduce the energy consumption and environmental impact of steel industry. China is the largest iron- and steelmaking slag producer in the world, and intensive efforts have been made during last
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Materials Free Full-Text Recent Developments in
2022.3.6 The reduction in CO2 emissions is normally fulfilled by recycling steel waste into alkali-activated cement. Numerous types of steel waste have been produced via three main production routes, including
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The potential for copper slag waste as a resource for a
2022.4.1 Copper slag waste is considered a potential world resource owing to the huge amounts being produced annually worldwide which contain significant amounts of valuable metals (Phiri et al., 2021). The global copper slag production is estimated at 752 million tons for the period between 1999 and 2019 from the 13 main producing countries
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Insights into the Valorization of Electric Arc Furnace Slags as ...
2023.12.26 The transition to hydrogen-based reduction processes within the iron and steelmaking industry will generate new types of slag compositions that require valorization routes. Using slags as supplementary cementitious materials (SCMs) addresses the carbon dioxide emissions of the cement industry since the SCM requires neither calcination nor
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Treatments and Recycling of Metallurgical Slags IntechOpen
2018.11.7 Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process, resulting in the recycling of energy, water, and other byproducts. In this chapter, techniques for the treatment and recycling of metallurgical slags are described. Metallurgical slags are considered secondary raw materials and are used or added
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Life Cycle Assessment of Recycling Copper Process from Copper-Slag ...
2009.10.16 The predigestion life cycle assessment (LCA) method has been applied to investigate the environmental impact of 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 potential utilization of slag generated from iron
2020.5.30 BF slag and achieved encourage results (Senani et al. 2016; Takahashi and Yabuta 2002). To produce sand from slag, rapidly cooling on the molten BF slag from blast furnace (temperature is around 1500 C) with pressured water can be performed, and then crushed and screened the slag to obtain a similar particle size
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Efficient recycling of silicon cutting waste for producing high
2023.3.20 A tremendous amount of silicon cutting waste (SCW) is being produced during slicing Si ingots, which leads to a great waste of resources and serious environmental pollution. In this study, a novel method that recycling SCW to produce Si-Fe alloys was proposed, which not only provides a process with low energy consumption, low cost, and
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Current Challenges in Efficient Lithium‐Ion Batteries’ Recycling
2022.9.8 Therefore, the profit margin by simple metal extraction will become thinner, and the related battery recycling business model needs a significant upgrade. The recycling of anodes, electrolytes, and current collectors must be considered to increase profits. ... However, some valuable elements such as Li and Al remain in the slag, ...
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Metallurgical Wastes as Resources for Sustainability of the
2022.5.3 The industrial pollution caused by metallurgical waste accumulation has a negative impact on the three environmental factors: soil, air and water. Therefore, the correct management of these wastes would lead to: protection of the environmental factors, the saving of natural resources and sustainability of the steel industry. The purpose of this
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Environmental and Socioeconomic Impact of
2021.12.3 Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron, cobalt,
MorePyrometallurgical options for recycling spent lithium-ion
2021.4.15 3.1. Thermal pretreatment methods. Current trends in the recycling of spent lithium-ion batteries aim to use thermal pretreatment methods to disintegrate the battery module and separate the battery into enriched metal fractions that can be reclaimed by extractive metallurgy [33, 42].The LIB is the most critical battery type to transport,
MoreCritical review on secondary zinc resources and their recycling ...
2020.6.17 Zn-smelting slag (contains 44% Zn, 4.8% Cd, 0.74% Cu, 0.38% Co, etc.) ... Selective leaching of metals is seen as one of the most lucrative solutions to solving the challenges related to EAF dust recycling (Havlik et al., 2005; Halli et al., 2017; Hamuyuni et al., 2018). The twofold benefit of this method is that dissolved metals Zn and Pb can ...
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Review on Comprehensive Recovery Valuable Metals and
2023.3.3 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
MoreThe recycling and reuse of steelmaking slags — A review
2019.7.1 During the blast furnace process limestone (CaCO 3) flux is added, to collect the waste products produced: silica (SiO 2), phosphorus pentoxide (P 2 O 5), calcium sulfide (CaS), magnesia (MgO) and alumina (Al 2 O 3).This forms blast furnace (BF) slag, which floats on top of the surface of the hot metal (Peters, 1982).The blast furnace is
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Characteristics and environmental aspects of slag: A review
2015.6.1 Abstract. Slag is a waste product from the pyrometallurgical processing of various ores. Based on over 150 published studies, this paper provides an overview of mineralogical and geochemical characteristics of different types of slag and their environmental consequences, particularly from the release of potentially toxic elements
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Steel slag in China: Treatment, recycling, and management
2018.8.1 In this paper, we reviewed steel slag treatment, recycling, and management in China. Although China’s annual slag production reached more than 100 million tons, its utilization rate is only 29.5%. As of 2016, more than 300 million tons of steel slag have not been used effectively. Large steel slag emissions are causing environmental problems ...
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A Review on Environmental Concerns and Technological
2023.11.20 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
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Current technologies for recovery of metals from
2021.5.1 According to a survey conducted by Pathirana et al. (2019), the most frequently-used treatment for metal-containing wastewater is the ion exchange and membrane filtration technique. However, there is still a great need to develop low-cost and eco-friendly technologies to recover precious metals from industrial wastes.
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Steel slag and its applications in cement and concrete
2021.5.10 Steel slag's usage is related to its physico-chemical characteristics. The density of steel slag is 3.3–3.6 g/cm 3. Steel slag is hard because of its high Fe amount and is highly resistant to corrosion. The grindability index of steel slag is 0.7 [38]. Steel slag primarily consists of SiO 2, CaO, Fe 2 O 3, FeO, Al 2 O 3, MgO, MnO, and P 2 O 5 ...
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