Reducing the Cost of Steel Desulfurization during Secondary Refining in a Ladle-Furnace Unit

Babanin, A. Ya.; Белов, Б. Ф.; Mints, A. Ya.; Abakumov, I.A.; Pervukhin, D. V.

doi:10.1007/s11015-022-01236-y

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…The bottom of the ladle furnace consists of a pipeline through which argon gas is pumped for the homogeneous stirring of liquid steel in the furnace. It also has a porous refractory plug connected to the argon pipeline, an addition hopper mounted on the cover used to extract fumes generated during the process, and a lance for injecting desulfurizing agents 17, 18.…”

Section: Lf Slag Productionmentioning

confidence: 99%

Ladle Furnace Slag: Synthesis, Properties, and Applications

Jacob

2023

ChemBioEng Reviews

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Ladle slag is a byproduct formed during the ladle refining stage of steel making. It is a dusty material that has been considered industrial waste. Technical advancements towards a sustainable industry led to the development of different applications for ladle slag. Depending on the processing methods during the steel slag production and the weathering of the slag post‐production, the elemental composition of the steel slag largely varies. Owing to this, its characteristics cannot be generalized and specific applications depending on the sources are developed. It is generally used in construction materials, soil rejuvenation, and CO2 capture. This paper reviews the production process, the mineralogical and morphological properties, stabilization techniques, and the applications of ladle furnace (LF) slag. One of the prime focuses of waste remediation and sustainable industry is to find meaningful ways to turn waste into products. In this respect, a comprehensive review of the properties of LF slag and its current application will help provide a framework for the development of future sustainability goals. With increased slag usage, the ladle refining process of steelmaking can be turned into a more carbon‐neutral process.

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Section: Lf Slag Productionmentioning

confidence: 99%

Ladle Furnace Slag: Synthesis, Properties, and Applications

Jacob

2023

ChemBioEng Reviews

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The Hydration Activity Enhancement Method of Mayenite in Ladle Slag: A Review

Duan,

Chao,

Zhang

et al. 2024

steel research int.

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As a byproduct of the steelmaking process, ladle slag has the potential to be used as an auxiliary cement material in the construction field. However, ladle slag generated after secondary refining is typically handled by air cooling and stacking, leading to the presence of the typical mineral phase mayenite (Ca12Al14O33, abbreviated as C12A7) in a crystalline form within the slag. This reduces its early hydration activity, which adversely affects the compressive strength of concrete and consequently lowers the resource utilization rate of ladle slag. Based on this, this article provides a comprehensive review of the generation process and composition of ladle slag. By discussing the hydration process and hydration products of the typical mineral phase C12A7 in ladle slag, as well as the mutual transformation of hydration products, it is shown that hydration products undergo transformation with increasing temperature. Compared to crystalline C12A7, amorphous, C12A7 exhibits excellent hydration activity. Building upon this, methods for amorphizing C12A7 are elucidated, wherein thermal activation or chemical activation is employed to alter the ordered arrangement of atoms within the crystal structure, thereby reducing the stability of the crystal structure to achieve amorphization of C12A7.

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Reducing the Cost of Steel Desulfurization during Secondary Refining in a Ladle-Furnace Unit

Cited by 2 publications

References 2 publications

Ladle Furnace Slag: Synthesis, Properties, and Applications

Ladle Furnace Slag: Synthesis, Properties, and Applications

The Hydration Activity Enhancement Method of Mayenite in Ladle Slag: A Review

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