Stainless Steel Slag Recycling

不锈钢渣的资源处置研究进展

2021.7.16 This paper introduces the stainless steel slag recources distribution, sources, physicochemical property, environment pollution characteristics, treatment process and harmless disposal. At the same time, the stainless steel slag in recycling valuable

Steel slag in China: Treatment, recycling, and management

2018.8.1 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

Recycling of ironmaking and steelmaking slags in Japan and

2022.4.6 However, increasing the utilization ratio of basic oxygen furnace slags remains a major challenge. Technological innovations in slag recycling are crucial for the

Steel slag in China: Treatment, recycling, and management

2018.8.1 In China, after steelmaking, the steel slag is poured from the converter, transported to the slag stacking place, and treated by aging. Then the steel slag is

A Review of Circular Economy Prospects for Stainless

2021.6.28 Depending on the unit processes inside a steel plant integrate, it can be possible to combine slags from stainless steelmaking with other industrial by-products

Removal mechanism of arsenic (V) by stainless steel slags

2020.8.1 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)

Recent advances in the reuse of steel slags and future perspectives

2021.4.26 Steel slag (SS) is a solid waste generated during the conversion of iron into steel in a basic oxygen furnace (BOF) or during the melting of scrap to make steel in

Carbon steel slag and stainless steel slag for removal of

2017.10.22 In this study, the arsenic removal capacity and mechanism were investigated for carbon steel slag, stainless steel slag and Fe-modified stainless steel

Slag recycling in submerged arc welding and its effects on

2016.10.15 From the literature review, it was observed that although some research has been done on mixing, reuse and recycling of SAW slag generated during welding of

Potential of Stainless Steel Slag Waste in Manufacturing Self ...

2020.4.28 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

含铬固废的资源化处理及循环利用研究进展

2020.6.21 LV Y, YANG L B, YANG Y, et al. An online detoxification method for chromium in stainless steel slag[P]. CN109628688A, 2019-04-16. [28] Liu M, Ma G, Zhang X, et al. Preparation of black ceramic tiles using waste copper slag and stainless steel

Steel slag in China: Treatment, recycling, and management

2018.8.1 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. The utilization rate in China is only 29.5%, whereas the utilization rate of steel slag in industrial countries is more than 85%.

A Review of Circular Economy Prospects for Stainless

2021.6.28 Considering that the specific amount of slag per ton of stainless steel is from 270 to 335 kg, approximately 15.7 to 19.5 Mt of slag was produced in this year 2) .

Transfer and transformation mechanism of chromium in stainless steel ...

The phase composition of stainless steel slag and the occurrence form of Cr have a significant impact on its recycling and the level of leaching risk. The chemical composition of AOD slag and EAF slag is shown in Table 2 , which shows that their chemical composition is dominated by CaO and SiO 2 , accounting for more than 70 wt% of the total ...

铬元素固化机理及利用不锈钢工业含铬固废制备无机材料 ...

2021.9.15 stainless steel slag, stainless steel dust, stainless steel rolled iron scale, and pickling sludge. ... Yang C C, Pan J, Zhu D Q, et al. Pyrometallurgical recycling of stainless steel pickling sludge: A review. J Iron Steel Res Int, 2019, 26(6): 547 doi: 10. ...

Removal mechanisms of cadmium and lead ions in

2020.8.1 The stainless steel slag in our study was obtained from scrap metal recycling which is considered environmentally friendly because it requires limited mining activities. Heavy metal removal efficiency by slag was tested under various conditions including pH, competition of ligands and liquid to solid ratios, and by the slag column with ...

Recycling of Stainless-Steel Pickling Sludge via RKEF Route

2023.1.19 Stainless steel is widely used and its output in China was 30.63 million tons in 2021, ranking first in the world. Stainless-steel strips need surface pickling to improve their corrosion resistance and appearance using acids, such as H 2 SO 4, HNO 3 and HF [1, 2].Consequently, stainless-steel pickling sludge (SSPS), which contains calcium sulfate,

New method for selective Cr recovery from stainless steel slag

2016.7.1 An alternative process for recycling of SS slag is accelerated carbonation with pressurized CO 2(g) or aqueous carbonated solution [17], [18], [19]. The accelerated carbonation of stainless steel slags is a versatile technology that can be used to solve several environmental issues.

Characteristics of steel slags and their use in cement and

2018.9.1 Section snippets Generation processes. 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

Carbon steel slag and stainless steel slag for removal of

2019.11.15 less steel slag and Fe-modiﬁed stainless steel slag based on an in-depth study. The study also evaluated the potential utilization of different steel slag for regeneration. The maximum adsorption of arsenic on carbon steel slag, stainless steel slag and Fe-modiﬁed stainless steel slag was 12.20, 3.17 and 12.82 mg g-1 at 25 C,

Crystals Free Full-Text Carbonation of EAF

2021.12.2 EAF stainless steel slag (EAF slag) is one kind of chromium-bearing metallurgical solid waste, which belongs to alkaline steel slag, and contains a large number of alkaline mineral phases. The

Green and efficient utilization of stainless steel dust by direct ...

2021.7.5 The crystalline transition of the silicate Ca 2 SiO 4 formed during stainless steel dust carbothermal reduction cooling is the key to the efficient separation of the reduced metal and slag. With stainless steel dust as the raw material and low basicity laterite nickel ore as an additive, the self-pulverization rate, the self-pulverization slag content and the

Physicochemical and mineralogical properties of stainless steel

2004.2.1 Unlike iron slag and steel slag, the study on metal recovery and utilization of stainless steel slag is just in its infancy (Shen and Forssberg, 2002, Kortbaoui et al., 1993). It was reported that magnetic separation or gravity separation methods had been used for recovery of Ni and Cr from stainless steel slag in some commercial processes ...

Recovery of chromium from chromium-bearing slags

2021.5.10 As shown in Fig. 4, the stainless-steel production process includes ferroalloy production and stainless-steel smelting processes.In the chain of stainless-steel production, the ferrochromium and ferronickel alloys are the important intermediate products, which are produced by using a submerged arc furnace (SAF) process, so that a large

Recycling of steel slag aggregate in portland cement concrete

2021.2.1 Steel slag is a solid industrial byproduct of steelmaking and is a promising alternative aggregate in concrete due to its unique characteristics (Guo et al., 2019). Steel slag is generated during the process of extracting impurities from steel with lime (CaO), dolomite (MgO), and other auxiliary materials. It accounts for approximately 12–20 ...

Recent advances in the reuse of steel slags and future perspectives

2021.4.26 Recycling steel slag from municipal wastewater treatment plants into concrete applications – A step towards circular economy. Resour. Conserv. Recycl. ... Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions. Journal of Hazardous Materials, Volume 286, 2015, pp. 211-219.

Comprehensive utilization of steel slag: A review

2023.5.15 1. Introduction. Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel output in 2021 was 1.035 billion tons [2], more than half of the global crude steel output (1.9505 billion tons) [3], and the steel slag output exceeded 120 million tons.In contrast,

Steel slag in China: Treatment, recycling, and management

Processes Free Full-Text Recycled Smelter Slags for In Situ

2023.3.6 Slag, a byproduct of metallurgical smelting processes, is a mixture of metal oxides, silicon dioxide, and different compounds [1,2,3,4,5].It is produced from raw ore combustion or the extraction of specific minerals from smelting materials [1,5].Huge quantities of slags (1868.8 million tonnes of global steel production in 2019–2020) are

Preparation of Black Ceramic Tiles Using Waste Copper Slag

2020.2.8 Copper slag and stainless steel slag of Electric Arc Furnace (EAF) are two typical metallurgical solid wastes, which contain a large number of valuables, such as Fe, Cr, and Cu. The transition metal elements in the waste slags, such as Cr and Fe, can be recycled as the coloring ions in the black ceramic tile. In this study, the Fe/Cr molar ratio