A Decarbonization Approach for FeCr Production

Güney, Hasan; Güner, Öykü; Boncuk, Furkan Ferhat; Kan, Selçuk; Benzesik, Kagan; Yücel, Onuralp

doi:10.1007/s40831-022-00632-7

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…Their study aimed to understand the influence of the MgO/Al 2 O 3 ratio, SiO 2 content, temperature, and viscosity upon the FeCr operation. Similarly, Guney et al [ 29 ] used FactSage to demonstrate the utilization of Al dross as a reducing agent for low‐carbon FeCr production.…”

Section: Thermodynamic Calculationsmentioning

confidence: 99%

“…Xiao et al [ 20 ] emphasized the significance of the pre‐reduction of chromite pellets for efficient FeCr production in electric arc furnaces. Investigations by Guner et al [ 21 ] explored the impact of various quantities of Al Powder and Al Dross, alongside flux ratios, on the resultant chromite concentration. Weitz and Garbers‐Craig [ 22 ] formulated a model illustrating the pivotal influence of slag composition and its basicity on producing low‐carbon ferrochrome.…”

Section: Introductionmentioning

confidence: 99%

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Ferrochrome Production in a Submerged Electric Arc Furnace: Fundamental Analysis Based upon the FactSage‐Macro Program Approach

Singha,

Das,

Kundu

et al. 2024

steel research int.

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Around 80% of the FeCr produced worldwide is utilized in stainless steelmaking. Thus, the growth of the stainless‐steel industry is directly related to FeCr production. Although the FeCr production in submerged arc furnace (SAF) is fairly stabilized, new challenges have emerged in the furnace operation due to the depletion of lumpy ores, high SiO2 content, and lower Cr/Fe ratio in the low‐grade ores. In this regard, the addition of various fluxes such as quartz, magnesite, and bauxite are considered to improve the Cr recovery in SAF operation, particularly in the context of low‐grade ores. In this study, thermodynamic calculations are performed to discuss the effect of various additives (MgO in magnesite, Al2O3 as bauxite, and SiO2 in quartz form) on Cr recovery and slag formation temperature. In addition, a comprehensive thermodynamic‐based process model has been developed for FeCr operation that captures the most important thermochemical reactions. The modeling results are compared with the plant data, and suitable modifications in the slag compositions are made to maximize Cr recovery. Moreover, new plant trials are performed with modified slag composition, and its effect on Cr recovery is also discussed.

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Section: Thermodynamic Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ferrochrome Production in a Submerged Electric Arc Furnace: Fundamental Analysis Based upon the FactSage‐Macro Program Approach

Singha,

Das,

Kundu

et al. 2024

steel research int.

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“…The utilization of renewable energy sources, such as solar, wind, biomass, hydropower, geothermal, and tidal, is becoming increasingly popular due to their potential to mitigate environmental, fossil fuel, and economic issues. 6,7 The International Energy Agency (IEA) has recommended transitioning away from fossil fuels due to the increasing demand for energy and the potential scarcity of fossil fuels. 8 To reduce emissions and global warming, carbon-neutral sources of energy, such as biomass, are gaining popularity.…”

Section: Introductionmentioning

confidence: 99%

Recent advances in dynamic modeling and control studies of biomass gasification for production of hydrogen rich syngas

Hussain¹,

Ali²,

Raza

et al. 2023

RSC Adv.

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“…Focus has been given to aluminothermic reduction processes, utilizing Al metal from a variety of secondary sources and wastes such as Al-dross and Al-scrap, thereby promoting more circular and sustainable value chains. For instance, H. Güney et al studied the aluminothermic reduction of chromite concentrates for the production of FeCr [2], C. Stinn et al the aluminothermic reduction of manganese sulfide to produce Mn master alloy, and J. Safarian and A. Kudyba et al the aluminothermic reduction of MnO slags in process that could be tailored to produce Mn, AlMn, and FeMn [3,4].…”

Section: Introductionmentioning

confidence: 99%

Control of Silica Gel Formation in the Acidic Leaching of Calcium Aluminate Slags with Aqueous HCl for Al Extraction

Tsaousi,

Toli,

Bempelou

et al. 2023

Sustainability

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The present research article investigates the extraction of aluminum (Al) from an engineered CaO-Al2O3-SiO2 slag by leaching with aqueous HCl under atmospheric pressure conditions. The slag is the by-product of an aluminothermic reduction process to produce metallurgical-grade silicon (Si) in a more sustainable way compared to conventional carbothermic reduction. One major challenge in the acidic leaching of aluminosilicate materials, like the slag treated in this study, is the possibility of SiO2 gel formation during the leaching process. Extensive SiO2 gel formation can make the separation of pregnant leach solution (PLS) from the leached residue impossible. Consequently, any acid leaching of aluminosilicate materials must be optimized for avoidance of these gelation phenomena. The present study first explores the leaching behavior of the calcium aluminosilicate slag in relation to the S/L ratio, with all other hydrometallurgical factors remaining stable (20.2% wt. HCl solution, 80 °C, optimized stirring rate), to determine at which value of this parameter SiO2 gelation occurs. After determining the optimum S/L ratio for this system, an analysis of the behavior of Si in the PLS is presented, and the mechanism of SiO2 gelation is explained based on critical assessment of these results against data provided from the scientific literature. It was found that the value of the pH of the PLS and the concentration of dissolved CaCl2 and AlCl3 are critical factors for the formation of filterable amorphous SiO2. Under the optimum leaching conditions, PLS containing 37 g/L Al was obtained with concurrent avoidance of gelation phenomena.

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A Decarbonization Approach for FeCr Production

Cited by 9 publications

References 11 publications

Ferrochrome Production in a Submerged Electric Arc Furnace: Fundamental Analysis Based upon the FactSage‐Macro Program Approach

Ferrochrome Production in a Submerged Electric Arc Furnace: Fundamental Analysis Based upon the FactSage‐Macro Program Approach

Recent advances in dynamic modeling and control studies of biomass gasification for production of hydrogen rich syngas

Control of Silica Gel Formation in the Acidic Leaching of Calcium Aluminate Slags with Aqueous HCl for Al Extraction

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