The granulated blast furnace slag is the industrial waste which is discharged in the process of iron smelting. As a typical material which has pozzolanic activity, granulated blast furnace slag is formed after water quenching and extremely cold treatment, it has vitreous structure and potential activity which is widely used in the …
Ferro chrome slag contains 7% chromium is considerably large quantity is being stock piled as solid waste. The chromium present in the slag can be recovered by the proposed method. The method contains the following steps: 1. Treatment of slag with lime to convert chromium present in the slag into chemical compound soluble in water
ferrochrome slag as a controlled low-strength structural fill material, International Journal of Geotechnical Engineering, DOI: 10.1080/19386362.2018.1448527 To link to this article: https://doi ...
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27–33% SiO2 ...
Ferrochrome (FeCr) slag was milled and stabilised with either ascorbic acid or phosphoric acid. The stabilised FeCr was then geopolymerised with 1 M KOH in order to obtain a monolith with at least ...
Ferroalloys: Production and use in Steel-making. Y.E. Lee, in Encyclopedia of Materials: Science and Technology, 2001 (b) Ferrochrome–silicon Ferrochrome –silicon is another chromium ferroalloy directly produced from chromite ores by carbothermic reduction in submerged arc furnace. The chromium content ranges from 34 to 42%, that of silicon …
The Ferrochrome slag treatment program has a very good effect on the treatment of ferrochrome slag. The obtained ferrochrome slag is pure and free of impurities, and the particles are distinct. Moreover, circulating water is used in the production process, and no chemicals are used, which will not cause secondary …
Waste and Biomass Valorization 1 3 MaterialsandExperimentalProcedures Raw Materials Inthis study,ferrochromeslag,originatingfromhighcar-bonferrochromeproduction ...
Ferrochrome Market Size & Trends . The global ferrochrome market size was valued at USD 17.8 billion in 2022 and is anticipated to grow at a compound annual growth rate (CAGR) of 6.5% from 2023 to 2030. Increasing stainless steel production around the globe is a significant factor driving the market growth.
To minimize the ecological hazards and retrieve the value of steelmaking slag, proper treatments are necessary, including reductions of f -CaO (free lime), γ -Ca 2 …
Figure 2. 4: Ferrochrome smelting slag at 1600 QC containing non-dissolvedPAC (Hayes, 2004) : 21 Figure 2. 5: Ferrochrome smelting slag "slowcooled" from the furnace showing the precipitationofsecondary spinel (Hayes, 2004) 21 Figure 2.6: Typical slag processing at laboratory 23 Figure 2. 7: Calibration curve for Cr in a FeCralloy (Willis, 2004) 30
The ever-increasing demand for ferrochrome alloys has resulted in a substantial accumulation of ferrochrome slag by-products in many mining areas.
AbstractThis manuscript aims to utilize industrial wastes, i.e.,ferrochrome slag (FS), ground granulated blast furnace slag, and fly ash to prepare alkali activated cementless controlled low strength material (CLSM). The physical properties, i.e.,...Practical ApplicationsThe present study aims to utilize a less …
Chromium and iron in chromite ore can form a continuous series of solid solution under certain conditions of heat treatment containing 45–80% of chromium. It is manufactured through direct smelting in Submerged Arc Furnace (SAF) ... Thus ferrochrome slag, a problematic solid waste having disposal problem can be suitably …
Ferrochrome slag (FS) having favourable mechanical properties) may be gainfully utilised as concrete aggregate. The concrete specimens with FS, natural stones (NS) and NS concrete mixed with 2% chromium nitrate salt (CR) as coarse aggregate were prepared. The samples were cured in aggressive curing solution like sulphuric acid …
In this study, the use of ferrochrome slag for the reduction of Cr (VI) in the outlet water of ferrochrome reclaiming process was explored. For this purpose, firstly, …
Ferrochrome (FeCr) is the main source of chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used during the production of stainless steel, which owes its corrosion resistance mainly to the presence of Cr. In turn, stainless steel is mainly produced from Cr-containing scrap …
Ferrochrome slag (FCS) is a by-product of ferrochrome industries and is produced during the extraction of ferrochrome from chromite ore. The chemical composition of FCS comprises of 27–33% SiO2 ...
Ferrochrome slag is a by-product generated during the extraction of ferrochrome whereas ferrochrome ash is a by-product of the ferroalloy industry. FCA is …
The slag also includes Cr and Fe oxides and calcium oxide. Common phases in the slag are glass, spinels (Al 2 O 3 –MgO) and forsterite (MgO–SiO 2) [16], [17], [18] and small amount of CaO. Aim of this work was to prepare conventional castable and low cement castables by utilizing this waste ferrochrome slag, calcined bauxite and …
Ferrochrome slag (FCS) is a potential source of Mg that is abundant in Southern Africa. ... Consequently, pre-treatment of the FCS in order to remove the magnesia may be vital to improving the use of the FCS for construction purposes The disadvantage of using FCS in the production of glass ceramics has been the need to …
The ever-increasing demand for ferrochrome alloys has resulted in a substantial accumulation of ferrochrome slag by-products in many mining areas. On the other hand, the ferrochrome slag has been identified as one waste material that is rich in magnesium (Mg) and has not been effectively exploited. Beneficiating of ferrochrome …
This paper outlines the physicochemical properties of stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag. The current treatment technologies of chromium-containing ...
Ferrochrome (FeCr) is the main source of chromium (Cr) units used in modern-day chromium (Cr) containing alloys. The vast majority of produced Cr is used …
In European conditions high carbon ferrochrome slag is certified to be chemically stable and compliant with regulations SFS 5904 and EN 13285. According to Outotec, successful applications for high carbon ferrochrome slag include the following: ... Scheelite is converted to insoluble tungstic acid by direct treatment with hydrochloric acid and ...
Thus, it has been demonstrated that the treatment of jigging water stream to be generated in a ferrochrome plant containing Cr(VI) can be accomplished by using ferrochromium slag and sulphuric acid.
High-carbon ferrochrome is mainly used as alloying agent for bearing steel, tool steel, and high-speed steel with high-carbon content, additive agent for cast iron, chromium containing raw material for producing silicochromium, as well as medium-, low-, and extra-low-carbon ferrochrome by slag-free method, raw materials for producing …
This work represents the results from the experimental investigation conducted on the utilization of ferrochrome slag (FCS) as a replacement of Portland cement (PC) in cement composites. A total of seven mix compositions were made and the corresponding performance of the mix were evaluated in terms of its strength, durability …
Spinel phase present in a uniform matrix is in conformance to the XRD pattern of the ferrochrome slag used. 4. Conclusion Conventional and low cement castables prepared from ferrochrome slag, calcined bauxite, …
Ferro chrome slag may contain chromium in +3 and +6 oxidation states. Separation and determination of chromium content of the slag samples collected from Jindal Ferro Alloys Corporation, (Kottha…