Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma

In this paper, we report the experimental results obtained in slag waste processing by direct current arc discharge initiated in ambient air. The method does not employ vacuum and gas equipment, therefore increasing the energy efficiency of processing. Plasma processing of coal slag was performed at...

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Autores principales: Bolatova, Zhanar, Pak, Alexander, Larionov, Kirill, Nikitin, Dmitriy, Povalyaev, Pavel, Ivashutenko, Aleksander, Mamontov, Gennady, Pestryakov, Alexey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9698856/
https://www.ncbi.nlm.nih.gov/pubmed/36431620
http://dx.doi.org/10.3390/ma15228134
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author Bolatova, Zhanar
Pak, Alexander
Larionov, Kirill
Nikitin, Dmitriy
Povalyaev, Pavel
Ivashutenko, Aleksander
Mamontov, Gennady
Pestryakov, Alexey
author_facet Bolatova, Zhanar
Pak, Alexander
Larionov, Kirill
Nikitin, Dmitriy
Povalyaev, Pavel
Ivashutenko, Aleksander
Mamontov, Gennady
Pestryakov, Alexey
author_sort Bolatova, Zhanar
collection PubMed
description In this paper, we report the experimental results obtained in slag waste processing by direct current arc discharge initiated in ambient air. The method does not employ vacuum and gas equipment, therefore increasing the energy efficiency of processing. Plasma processing of coal slag was performed at different arc exposure times: 5, 10, 15, 20, and 25 s. The obtained materials contained a significant amount of graphite, which was removed through combustion. The micropowder based on silicon carbide and aluminum nitride was obtained and then sintered by spark plasma. The bulk ceramic samples based on silicon carbide with the hardness of ~10.4 GPa were finally fabricated.
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spelling pubmed-96988562022-11-26 Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma Bolatova, Zhanar Pak, Alexander Larionov, Kirill Nikitin, Dmitriy Povalyaev, Pavel Ivashutenko, Aleksander Mamontov, Gennady Pestryakov, Alexey Materials (Basel) Article In this paper, we report the experimental results obtained in slag waste processing by direct current arc discharge initiated in ambient air. The method does not employ vacuum and gas equipment, therefore increasing the energy efficiency of processing. Plasma processing of coal slag was performed at different arc exposure times: 5, 10, 15, 20, and 25 s. The obtained materials contained a significant amount of graphite, which was removed through combustion. The micropowder based on silicon carbide and aluminum nitride was obtained and then sintered by spark plasma. The bulk ceramic samples based on silicon carbide with the hardness of ~10.4 GPa were finally fabricated. MDPI 2022-11-16 /pmc/articles/PMC9698856/ /pubmed/36431620 http://dx.doi.org/10.3390/ma15228134 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bolatova, Zhanar
Pak, Alexander
Larionov, Kirill
Nikitin, Dmitriy
Povalyaev, Pavel
Ivashutenko, Aleksander
Mamontov, Gennady
Pestryakov, Alexey
Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title_full Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title_fullStr Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title_full_unstemmed Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title_short Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma
title_sort ash and slag waste processing in self-shielded atmospheric dc arc discharge plasma
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9698856/
https://www.ncbi.nlm.nih.gov/pubmed/36431620
http://dx.doi.org/10.3390/ma15228134
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