Stainless Steel Slag - Sand Steel slags are a by-product of stainless steel production that can be used to create a concrete like building material (carbinox carbstone). Two initiatives (VITO in cooperation with ORBIX) invented a process to make this concrete-like material, ...
The effect of trace elements on the formation of slag spots during gas tungsten arc welding of 316 L stainless steel tube systems- Processing of the Semi …
In order to compare the properties of alkali-activated carbon steel slag (CSS) and stainless steel slag (SSS), the effects of sodium hydroxide/sodium silicate solution mass ratio (NH/NS), liquid/solid ratio and blast furnace slag (BFS) dosage on the compressive strength, hydration products and hydration degree of CSS and SSS were …
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Steel slag contains CaO, MgO, FeO and trace minerals that benefit agriculture. For more information, please contact: TMS International Aggregate Hotline. Phone: 1-855-867-7524. ... TMS Fine Stainless Steel Slag. Regional Slag. Johnstown, PA Aggregate Products Oregon Slag. TMS Case Studies.
Secondary stainless steel slag contain hydraulic phases, predominantly calcium aluminates. • Study of cement composites in which cement is replaced by secondary stainless steel slag. • Investigation of strength development, hydration products, and porosity. • Secondary stainless steel slag is a promising supplementary …
1. Introduction. Stainless steel slag is a by-product of the stainless steel production process [8], its output is about one-third of the stainless steel production [10], [21].With the increasing demand for stainless steel products in many fields, the annual production of stainless steel slag in China has exceeded 10 million tons [26].Since 70 …
Mineralization of CO 2 using a Ca–rich metallurgical slag is known to be a promising approach to controlling CO 2 emissions while converting slag by-products into valuable materials. However, untreated stainless steel slag (SSS) cannot straightforwardly be used for carbon capture and storage (CCS) or rather carbon capture and utilization …
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Compared with iron slag (blast furnace slag) and steel slag, the total amount of stainless steel slag is small (Proctor et al., 2000). However, since the amount of …
Spinel phase is considered to be the optimal phase for stabilization of chromium in stainless steel slag. In order to restrain chromium leaching from slag for the effective environmental protection, Al 2 O 3 was utilized for the modification treatment, and the effects on the enrichment and stabilization of chromium were investigated. The …
Wollastonite-augite glass-ceramics of the CaO–SiO 2 –Al 2 O 3 –MgO system were prepared from stainless steel slag as the main raw material. The effects of SiO 2 /MgO mass ratio on the crystallization behavior, crystalline phases, structure, and properties of the as-prepared stainless steel slag glass-ceramics were investigated by differential …
Compared with iron slag (blast furnace slag) and steel slag, the total amount of stainless steel slag is small (Proctor et al., 2000). However, since the amount of stainless steel slag is the largest among the alloy steel slags and since it contains high content of Cr and a certain amount of Ni, it is desirable to treat stainless steel slag ...
The effect of trace elements on the formation of slag spots during gas tungsten arc welding of 316 L stainless steel tube systems- Processing of the Semi Stainless Steel Task Force Meeting. (San ...
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 …
Stainless-steel slag, copper slag, and coal tar residue were desiccated in a drying oven, ground in a grinder, and then passed through a 75 μm sieve to obtain a pass rate of 80%. The stainless-steel slag, copper slag, and coal tar residue were mixed in different mass ratios, and then these mixtures were placed into a crucible and put into a ...
The production of stainless steel slag by China's stainless steel industry is expected to reach 10 million tons in 2020, which necessitates the establishment of a well-designed waste management strategy. Argon oxygen decarburization (AOD) slag is a by-product of stainless steel production that contains Ca, Mg, ...
Once the steel has been tapped into a ladle, the slag is either poured from the furnace onto the floor where it is cooled and removed for further processing, or into slag pots where specially designed vehicles are used to transport the slag to purpose-built lagoons, where it is tipped and cooled prior to onward processing.
Stainless steel slag powder produced by Guangxi Liuzhou Iron and Steel (Group) Company (Liuzhou, China) was used in the test. It is a stainless steel AOD slag obtained by the harmless treatment of solid waste produced in the later stages of stainless steel refining. Its appearance is grayish-white with powdered fine particles and a loose …
2.2. Phase equilibrium experiment. Prior to the phase equilibrium experiment, the thermodynamic software FactSage 8.0 and the corresponding database (FToxid) were employed to predict the crystal phases of the as-received stainless steel slag and the modified slags during cooling [31], [32].. The phase equilibrium experiments were …
Stainless steel slag (SS slag) containing a high amount of chromium (2–8 wt%) is a significant by-product of stainless steel production process [1,2,3].Approximately one ton of SS slag forms when manufacturing three tons of stainless steel [4, 5].Plenty of SS slags are discharged to the environment every year, leading to a waste of chromium …
For instance, the profile of an industrial soil may be characterized by the stratification or the heterogeneous mixture of native soil and industrial by-products, such as demolition waste and slag from steel making processes (Renforth et al., 2009) for which the leaching of specific elements may be significant, e.g.: Cr from stainless steel ...
A new synergistic treatment of stainless steel slag and low zinc content electric arc furnace (EAF) dusts is proposed to immobilize harmful chromium in stainless steel slag. The effects of ZnFe2O4 addition on the mineralogic phase and chromium leachability of CaO-SiO2-MgO-Al2O3-Cr2O3 synthetic slag were investigated to explore …
X-ray diffraction analysis of steel slag samples shows a complex structure with many overlapping peaks reflecting the crystalline phases present in steel slag. …
Ferrochrome slag is a by-product of the production of ferro-chrome alloy, an essential component in stainless steel. The conventional process of ferrochrome making involves the carbothermic reduction of chromite ore where around 1.2–1.5 tons of slag containing approximately 8–12% of chromium oxide is generated per ton of hot metal …
Chromium plays a vital role in stainless steel due to its ability to improve the corrosion resistance of the latter. However, the release of chromium from stainless steel slag (SSS) during SSS stockpiling causes detrimental environmental issues. To prevent chromium pollution, the effects of iron oxide on crystallization behavior and …
Mineralization of CO 2 using a Ca–rich metallurgical slag is known to be a promising approach to controlling CO 2 emissions while converting slag by-products into valuable materials. However, untreated stainless steel slag (SSS) cannot straightforwardly be used for carbon capture and storage (CCS) or rather carbon capture and utilization …
Per ton of stainless steel slag, as a kind of solid waste produced during the production of stainless steel, were produced by three tons of stainless steel approximately 10 to which the human body ...
Abstract The world of stainless steel production was 52 Mt in 2019, and the annual amount of slags including electric furnace, AOD converter, ladle, and casting tundish, was estimated at 15–17 Mt. …
Selective chromium (Cr) leaching from stainless steel slag (SS slag) by alkali roasting followed by water leaching was investigated. The efficiency of the alkali roasting process for Cr leaching was increased by optimizing the mass ratio of alkaline agents (NaOH, and NaOH–NaNO 3) to the slag, roasting temperature and time.At the …
Type I Ordinary Portland cement (OPC) with the grade of 42.5, stainless steel slag, and natural sand were used in the experiment. The cement fully complies with ASTM C150 [19].The stainless steel oxidizing slag (SSOS) used in this work is carried out in an electric arc furnace (EAF), collected from the China Lihua stainless steel plant …
The chromium elution behavior of stainless steel (SS) slag depends highly on the chromium distribution, and the molten modification process proved to effectively improve the chromium enrichment in stable phases. However, the phase transformation and variation of chromium stability during the subsequent cooling process is still poorly …
The volume of slags generated from the steel industry is a source of possible resources which is constantly increasing. Specifically, in the production of stainless steel, specific and singular slags with unique …
2. Applications of Steel slag. According to the Malaysia Environmental Quality (Scheduled Waste) Regulation (2005), Steel slag is classified as non-hazardous waste which can …
This paper presents the results of a study on self-compacting concrete (SCC) made with stainless steel reducing slag (SSRS). Two kinds of SSRS, being different in the surface area (e.g., 1766- and 7970 cm 2 /g), were employed as filler and cement substitution, respectively. A series of six mixing proportions with a change of SSRS …
The SSs were processed in the laboratory, obtaining four different materials to be used in the manufacture of SCC (Figure 2): SSs (stainless steel slag dried in an oven for 24 h and screened with a particle size not exceeding 1 mm), SSs-C (stainless steel slag dried in an oven for 24 h and crushed, with a particle size not exceeding 0.25 …
Stainless Steel Slag Characterization. The elemental composition of each type of analyzed slag is reported in Table 1.Results proved to be in good agreement with data reported for these specific types of residues in prior studies [6, 9, 41, 42].The elemental content of the EAF slag was overall similar to the average composition of the …
This figure represents 52.6% of world production of stainless steel . Despite the fact that stainless steel is a material that can be recycled over and over again, which …