Improving the Dry Magnetic Separation of BOF-slag by Applying an Innovative Pre-treatment Process
Wölfelschneider, Simon; Omran, Mamdouh; Häuselmann, Monika; Gronen, Lars; Morillon, Agnieszka; Pietruck, Roland; Adolphy, Daniel (2023-06-27)
Springer
27.06.2023
Wölfelschneider, S., Omran, M., Häuselmann, M. et al. Improving the Dry Magnetic Separation of BOF-slag by Applying an Innovative Pre-treatment Process. Berg Huettenmaenn Monatsh 168, 341–345 (2023). https://doi.org/10.1007/s00501-023-01370-3
https://rightsstatements.org/vocab/InC/1.0/
© The Author(s), under exclusive licence to Austrian Society for Metallurgy of Metals (ASMET) and Bergmännischer Verband Österreich (BVÖ) 2023This is a post-peer-review, pre-copyedit version of an article published in BHM Berg- und Hüttenmännische Monatshefte. The final authenticated version is available online at: https://doi.org/10.1007/s00501-023-01370-3
https://rightsstatements.org/vocab/InC/1.0/
© The Author(s), under exclusive licence to Austrian Society for Metallurgy of Metals (ASMET) and Bergmännischer Verband Österreich (BVÖ) 2023This is a post-peer-review, pre-copyedit version of an article published in BHM Berg- und Hüttenmännische Monatshefte. The final authenticated version is available online at: https://doi.org/10.1007/s00501-023-01370-3
https://rightsstatements.org/vocab/InC/1.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202504022362
https://urn.fi/URN:NBN:fi:oulu-202504022362
Tiivistelmä
Abstract
To approach circular economy by enhancing the internal recycling potential of BOF-slag, an innovative pre-treatment process for the dry magnetic separation is investigated. It consists of slow-cooling to enlarge the slag crystals, followed by microwave irradiation to generate intergranular cracks to enhance the mineral liberation during comminution. It can be shown that the pre-treatment leads to an increase in the separation degree by at least four percent. This can be further enhanced by a factor of five by using solid-state oxidation.
To approach circular economy by enhancing the internal recycling potential of BOF-slag, an innovative pre-treatment process for the dry magnetic separation is investigated. It consists of slow-cooling to enlarge the slag crystals, followed by microwave irradiation to generate intergranular cracks to enhance the mineral liberation during comminution. It can be shown that the pre-treatment leads to an increase in the separation degree by at least four percent. This can be further enhanced by a factor of five by using solid-state oxidation.
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