Chemical, Mineralogical, and Morphological Properties of Steel Slag

By I. Yildirim, M. Prezzi. 2011

713 citations recorded by the source corpus.

Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking, electric-arc-furnace (EAF) steelmaking, and ladlefurnace steel refining processes. The mineralogical and morphological properties of BOF and electric-arc-furnace-ladle [EAF(L)] slag samples generated from two steel plants in Indiana were determined through X-Ray Diffraction (XRD) analyses and Scanning Electron Microscopy (SEM) studies. The XRD patterns of both BOF and EAF(L) slag samples were very complex, with several overlapping peaks resulting from the many minerals present in these samples. The XRD analyses indicated the presence of free MgO and CaO in both the BOF and EAF(L) slag samples. SEM micrographs showed that the majority of the sand-size steel slag particles had subangular to angular shapes. Very rough surface textures with distinct crystal structures were observed on the sandsize particles of BOF and EAF(L) slag samples under SEM. The characteristics of the steel slag samples considered in this study are discussed in the context of a detailed review of steel slag properties.

Subfields: Civil and Structural Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/0c00702211d4a1ef5f538f1c30260fa5a5d25805

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Citations in the corpus

Characterization of Ladle Furnace Slag from Carbon Steel Production as a Potential Adsorbent (2013, background): “The results of the XRD analysis in the investigated LF slag are comparable with the results published before [2, 3, 12, 14].”
Characteristics and environmental aspects of slag: A review (2015, neutral): “Schematic of slag generation in a blast furnace operation to produce iron and in a modern steel plant to produce steel (modiﬁed from Yildirim & Prezzi, 2011).”