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Submerged-arc welding slags: Characterization and leaching strategies for the removal of aluminum and titanium

Raquel Annoni, Poliana Santos Souza

2013ptweldingslagscharacterizationleachingaluminum

Abstract

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In the present study, submerged-arc welding slags were characterized by applying a variety of methods, including X-ray fluorescence, X-ray diffraction, particle size, Raman spectroscopy, and scanning electron microscope with energy dispersive X-ray analysis. The content of Al proved to be quite similar within neutral and acid slags (10–14%), while that of Ti proved to be much higher in acid slags (approximately 10%) than in neutral slags. Furthermore, it was observed that the leaching process can effectively recover aluminum, with up to 80% leaching efficiency achieved after calcination of the slag followed by H2SO4 treatment. Spinel structures associated with Al species were identified within the slag matrix, indicating potential for aluminum and titanium recovery. The study highlights the importance of characterizing welding slag for industrial applications and recycling, providing insights into the effective leaching strategies for valuable metal extraction.

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Cite This Work

@article{7b1d557f-ec0d-4209-b5b7-67358269ac7b,
  title={Submerged-arc welding slags: Characterization and leaching strategies for the removal of aluminum and titanium},
  author={Raquel Annoni and Poliana Santos Souza},
  year={2013},
  language={pt}
}
TY  - JOUR
TI  - Submerged-arc welding slags: Characterization and leaching strategies for the removal of aluminum and titanium
AU  - Raquel Annoni
AU  - Poliana Santos Souza
PY  - 2013
LA  - pt
ER  -

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