slag recycling process

slag recycling process

Slag recycling - recovery

The 2015 recovery quantities for blast furnace slag are shown in Fig. 15. Granulated slag makes up 86 %, of which almost the entire amount is used in the cement industry. The

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Recycling of ironmaking and steelmaking slags in Japan

2022年4月6日  Technological innovations in slag recycling are crucial for the steel industries in Japan and China. Here, the current status and developing trends of

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Treatments and Recycling of Metallurgical Slags

2018年11月7日  Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process, resulting in the recycling

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The recycling and reuse of steelmaking slags — A review

2019年7月1日  The process of making slag wool involves melting the slag and drawing it through a tap hole. The slag then passes through a jet of air, which disperses the slag

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Lithium-Ion Battery Recycling─Overview of Techniques

2022年1月19日  Given the costs of making batteries, recycling battery materials can make sense. From the estimated 500,000 tons of batteries which could be recycled from global

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Basics of slag production - Article on the slag industry

2011年10月27日  This can sometimes be countered by recycling to some other branch of the process stream or by separating out certain fractions and recycling those. An

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The recycling and reuse of steelmaking slags — A review

2019年7月1日  Slag is a mainly non-metallic by-product that is made up of silicates, alumina silicates, calcium aluminum silicates, and iron oxides (Joulazadeh and Joulazadeh,

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Aluminium salt slag characterization and utilization – A

2012年5月30日  The salt slag recycling process operated by Befesa Escorias Salinas SA enables the recovery of free metal and flux salts, thus creating a product made up mostly

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Development of Slag Recycling Process in Hot Metal

2009年10月1日  In order to develop an environment‐friendly steelmaking process, a slag recycling process for hot metal desulfurization by mechanical stirring was designed. The

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Slag Metallurgy and Metallurgical Waste Recycling

2016年7月29日  Slag is a typical byproduct generated during high-temperature metallurgical processes. It must be treated appropriately to meet the increasingly strict environmental requirements and to realize the economic benefits.1,2 The present topic, “Slag Metallurgy and Metallurgical Waste Recycling,” collects eight articles, which demonstrate the

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Assessment of Electric Arc Furnace (EAF) Steel Slag

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 is

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Recycled Lithium from Simulated Pyrometallurgical Slag

In this research, an innovative method to recycle lithium from pyro-slag by evaporation during chlorination roasting was proposed. Different chlorine donors, namely NaCl, AlCl 3 , and CaCl 2 were evaluated by HSC software and experiments, among which CaCl 2 possessed a stronger ability of chlorine donation in the chlorination roasting process.

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Recycling of submerged arc welding slag for sustainability

2023年2月10日  Furthermore, recycling of slag also involved the addition of certain deoxidisers and binders to it which makes it reliable and repeatable, thereby resulting in cost-saving up to 50% and also reduces environmental pollution (Beck Jackson, Citation 1996). In addition to that, the possible alternatives to slag usage and the process of its ...

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A novel process to recycle coal gasification fine slag by

Maximizing the use of valuable components in coal gasification slag is of great significance for resource recovery and the environment due to the huge annual emission of coal gasification slag. This study successfully produced Si-Fe-Al-Ca alloy with a composition of 63.83 wt% Si, 19.73 wt% Fe, 7.09

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Life Cycle Assessment of Recycling Copper Process from

2009年10月18日  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

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Study on recycling Si from silicon diamond-wire saw

In this paper, a slag refining process was proposed to recycle Si from SCW for producing high-quality silicon. CaO was used as fluxing agent to react with SiO 2 for forming compounds with low melting point and viscosity during recycling process. The influences of CaO addition amount and refining time on recovery ratio of SCW and purity of Si ...

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Lithium-Ion Battery Recycling─Overview of Techniques

2022年1月19日  Given the costs of making batteries, recycling battery materials can make sense. From the estimated 500,000 tons of batteries which could be recycled from global production in 2019, 15,000 tons of aluminum, 35,000 tons of phosphorus, 45,000 tons of copper, 60,000 tons of cobalt, 75,000 tons of lithium, and 90,000 tons of iron could be

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A Study on Reduction of Copper Smelting Slag by Carbon

2019年12月15日  Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia

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Reuse of steel slag as photocatalyst for tetracycline

In this article, steel slag was handled by alkali activation process. The final preparation alkali activated steel slag (A-SS) mainly contains calcium silicate hydrate (CSH) and brownmillerite (C4AF). The degradation of tetracycline (TC) is used as a model reaction to explore the potential of A-SS in photocatalysis. The effect of various ...

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Recycling of brass melting slag through the high

2022年4月13日  Brass melting slag is a valuable secondary resource for the recovery of copper and zinc. The hydrometallurgical recovery process of this material is a challenge, because of its limited dissolution in sulfuric acid. The present study aimed at studying a combined pyro-hydrometallurgical treatment processes involving high temperature

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A novel process to recycle coal gasification fine slag by

Maximizing the use of valuable components in coal gasification slag is of great significance for resource recovery and the environment due to the huge annual emission of coal gasification slag. This study successfully produced Si-Fe-Al-Ca alloy with a composition of 63.83 wt% Si, 19.73 wt% Fe, 7.09

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Recycled Lithium from Simulated Pyrometallurgical Slag

In this research, an innovative method to recycle lithium from pyro-slag by evaporation during chlorination roasting was proposed. Different chlorine donors, namely NaCl, AlCl 3 , and CaCl 2 were evaluated by HSC software and experiments, among which CaCl 2 possessed a stronger ability of chlorine donation in the chlorination roasting process.

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Reuse of steel slag as photocatalyst for tetracycline

In this article, steel slag was handled by alkali activation process. The final preparation alkali activated steel slag (A-SS) mainly contains calcium silicate hydrate (CSH) and brownmillerite (C4AF). The degradation of tetracycline (TC) is used as a model reaction to explore the potential of A-SS in photocatalysis. The effect of various ...

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Study on recycling Si from silicon diamond-wire saw

In this paper, a slag refining process was proposed to recycle Si from SCW for producing high-quality silicon. CaO was used as fluxing agent to react with SiO 2 for forming compounds with low melting point and viscosity during recycling process. The influences of CaO addition amount and refining time on recovery ratio of SCW and purity of Si ...

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A Study on Reduction of Copper Smelting Slag by Carbon

2019年12月15日  Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia

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Evaluation of Influence of Air Quenching Granulation

2023年3月21日  Global crude steel production reached 1951 million tons (Mt) in 2021, with China accounting for 52.9% of total crude steel production. 1 Steelmaking slags, as an industrial waste by-product generated during the steelmaking process, account for about 15–20% of the total steel amount. 2 Slag production has been increasing with the

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Assessment of Electric Arc Furnace (EAF) Steel Slag

2020年10月9日  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 is mainly produced through an ...

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Efficient recycling of silicon cutting waste for producing

2023年3月20日  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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Recycling used lead-acid batteries - World Health

2021年9月7日  2. How lead exposure occurs during recycling and disposal 4 2.1. Components of a lead-acid battery 4 2.2. Steps in the recycling process 5 2.3. Lead release and exposure during recycling 6 2.3.1. Informal lead recycling 8 2.4. Other chemicals released during recycling 9 2.5. Studies of lead exposure from recycling lead-acid

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