Abstract. Large volumes of slags are formed as by-products during the refinement of pig iron by basic oxygen steelmaking or electric arc furnace steelmaking. 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 recycle by-products.

The distribution equilibrium of Mn between ladle slag and liquid steel during the refining of ultra low carbon Al-Si killed steel was simulated in a LaCrO3 high temperature furnace at 1873K, the ...

As one of the main solid wastes in the steel industry, a large amount of steel slags are disposed of at landfills each year. The complex composition, low hydration …

Abstract Chromium leaching from stainless steel slag should be dealt with when utilized them as construction materials, an original idea of increasing calcite coating compactness in slag matrix is proposed for solving this problem. The paper originally proposes a carbonation strategy balancing carbon dioxide sequestration efficiency and …

Very encouraging results were obtained, since this research demonstrates the possible application of this stainless steel slag as a construction material, improving …

With a complete steel slag treatment and recycling system, Japan recycled 98.4% of its 14 million tons of steel slag each year. Approximately 60% of steel slag is used in civil engineering and road construction, while 20% is used for internal recycling ( Nippon Slag Association, 2016 ).

In 2021, the output of stainless steel in China was 30.63 million tons, producing about 1 million tons of stainless steel dust and about 5 million tons of chromium-containing slag. At present, the development of efficient recycling of secondary solid waste resources can alleviate the consumption and depletion of mineral resources and is an ...

The synthetic stainless steel slag systems with different basicity and different FeO contents were prepared using reagent powders, the crystallization of which was experimented by cooling from ...

In this study, retention mechanisms of As(V) to the stainless steel slag from scrap metal recycling was investigated at initial pH (pH ini) ranging from acidic (pH 1.0) to alkaline (pH 10). The function was evaluated for the original slag as well as after a simple washing procedure to remove readily soluble surface coatings i.e. soluble oxides.

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 …

Recycling stainless steel significantly reduces greenhouse gas emissions, energy consumption, and water usage compared to primary production methods. It helps …

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 recycle …

Steel slag is a solid waste of the steel industry, produced during steel production. Three types of slag, namely electric arc furnace (EAF), basic oxygen furnace (BOF), and Linz-Donawitz processed slag (LD-slag) are the steel industry byproducts. That slag comprises precious elements including zinc (Zn), chromium (Cr), iron (Fe), nickel …

This paper presents a new soil amendment used for immobilization of soil Pb, produced from vinegar residue, stainless steel slag, and weathered coal. The pH value measuring, granulation and adsorption experiments were carried out to determine the optimal composition of soil amendment. Optimizing soil amendment B2 was composed of …

Influence of particle size on the carbonation of stainless steel slag for co2 storage. Energ. Procedi., 1 (2009), pp. 4859-4866. View PDF View article View in Scopus Google Scholar. Bao et al., 2010. ... Recycling of steel slag and glass cullet from energy saving lamps by fast firing production of ceramics. Waste Manage., 30 (2010), pp. 1714 …

Despite the fact that stainless steel is a material that can be recycled over and over again, which makes it perfectly suited to sustainable development and the …

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Abstract. Stainless-steel pickling sludge (SSPS) is a hazardous solid waste, mainly containing CaSO 4, CaF 2 and certain amounts of Fe, Cr and Ni. The abundant sulfur in the SSPS hinders its utilization and deteriorates the product quality when the sludge is recycled as the feed for ferronickel production. In this chapter, we introduce a …

According to the International Stainless Steel Forum (ISSF) report, stainless steel consumption was primarily used for metal products and mechanical engineering in 2021. Furthermore, ISSF also forecast that the global demand for stainless steel will increase in the future, so the treatment of the wastes such as slag [ 2 ] and …

Metals can be recycled without loss of quality. Because metallic bonds are restored upon resolidification, metals continually recover their original performance properties, even …

Since cladding of stainless steel is an important industrial process and a large amount of slag waste is also generated during this process, it was decided to undertake the present study wherein a technology for recycling of SAW slag generated during submerged arc cladding of stainless steel has been developed.

Producing 1 ton of stainless steel is usually accompanied by approximately 40 kg of stainless steel dust and 300 kg of stainless steel slag [7, 8]. In 2021, the yields of Figure 1 is the particle ...

For a complete recycling of the stainless steel slag, we propose a recycling process which closes the full material loop. After Cr leaching by the MA assisted APL technique and a subsequent washing step the leftover matrix material can be used for the production of building materials through a carbonation step. Chromium can be …

A technology for recycling of slag generated during submerged arc cladding of stainless steel was developed. In the present study the effects of process parameters and recycled slag on flux ...

Stainless Steel Slag Recycling Solution and Beneficiation Equipment. April 27, 2021. 10:00 am. Stainless steel slag is divided into dry slag and water-granulated slag. The specific gravity difference …

Stainless steel slag obtained from scrap metal recycling, on the other hand, removed more than 90% of Cd from aqueous solutions [50]. Yu et al. [27] reported that activated modified steel slag at ...

Stainless steel pickling sludge (SSPS) is classified as hazardous solid waste, while Argon Oxygen Decarburization (AOD) slag is challenging to utilize due to the leaching toxicity of Cr. This study introduces a novel in-line co-processing technique for AOD slag and SSPS, parallel to the steelmaking process, aimed at metal recovery, …

In China, BOF slag accounts for about 70% of the annual steel slag production (Cheng and Yang, 2010).In the BOF process (Fig. 1), minor steel scrap and a large amount of molten iron from ironmaking as well as fluxes (lime/dolomite) are added into the furnace, and a 99% pure oxygen flow is applied at supersonic speed through a lance …

Steel slag, a by-product of steel making, is produced during the separation of the molten steel from impurities in steel-making furnaces. The slag occurs as a molten liquid melt and is a complex solution of silicates and oxides that solidifies upon cooling. ... Recycling. It is estimated that between 7.0 and 7.5 million metric tons (7.7 to 8.3 ...

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 ...

As a type of metallurgical solid waste with a significant output, chromium-containing metallurgical dust and slag are gaining increasing attention. They mainly include stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag, which contain significant amounts of valuable elements, such as chromium, iron, and zinc, as …

Steel's production by-products also has a high rate of recycling, with 90 percent of the co-products used in steel production—including slag, water, gas, and dust—also being reused or …

The mass production of steel is inevitably accompanied by large quantities of slags. 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 producing countries that have placed a large emphasis on developing new technologies …