Comparison of conventional crushing and high-voltage pulsed power technology as techniques for disaggregating different types of spent magnesia-carbon refractory bricks during recycling

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dc.contributor.author Garbers-Craig, Andrie Mariana
dc.contributor.author Naude, Natasia
dc.date.accessioned 2024-02-14T05:13:41Z
dc.date.available 2024-02-14T05:13:41Z
dc.date.issued 2023-12
dc.description.abstract Three different types of spent magnesia-carbon (MgO–C) bricks were chosen to evaluate the liberation of magnesia particles through high-voltage pulsed power technology (HVPPT) and conventional comminution (jaw and cone crushing). The primary objective was to determine how the different types of MgO–C bricks comminute and whether magnesia particles could be restored to their original raw material particle size distribution (PSD). Analytical results revealed that the bricks contained varying amounts of graphite and resin binder, indicating differences in their compositions and therefore comminution properties. The HVPP technique demonstrated its ability to liberate magnesia particles within the +1700 μm fraction, whereas conventional crushing predominantly formed composite particles (containing MgO and carbon) within this size range, with over 63% particles falling in this category. This finding suggests that MgO particles were not adequately liberated during the conventional crushing process, indicating the need for an additional comminution step to achieve the desired liberation. en_US
dc.description.department Materials Science and Metallurgical Engineering en_US
dc.description.librarian hj2024 en_US
dc.description.sdg SDG-12:Responsible consumption and production en_US
dc.description.uri https://www.sciencedirect.com/journal/open-ceramics en_US
dc.identifier.citation Garbers-Craig, A. & Naude, N. 2023, 'Comparison of conventional crushing and high-voltage pulsed power technology as techniques for disaggregating different types of spent magnesia-carbon refractory bricks during recycling', Open Ceramics, vol. 16, art. 100442, pp. 1-12, doi : 10.1016/j.oceram.2023.100442. en_US
dc.identifier.issn 2666-5395 (online)
dc.identifier.other 10.1016/j.oceram.2023.100442
dc.identifier.uri http://hdl.handle.net/2263/94566
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.rights © 2023 The Authors. Published by Elsevier Ltd on behalf of European Ceramic Society. This is an open access article under the CC BY-NC-ND license. en_US
dc.subject Magnesia-carbon (MgO–C) en_US
dc.subject High-voltage pulsed power technology (HVPPT) en_US
dc.subject Particle size distribution (PSD) en_US
dc.subject MgO-C bricks en_US
dc.subject Conventional crushing en_US
dc.subject SDG-12: Responsible consumption and production en_US
dc.title Comparison of conventional crushing and high-voltage pulsed power technology as techniques for disaggregating different types of spent magnesia-carbon refractory bricks during recycling en_US
dc.type Article en_US


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