Publicação
A new concept of ceramic consumable anode for iron pyroelectrolysis in magnesium aluminosilicate melts
| Resumo: | Drivenbyenvironmentalchallengesandglobalmovementtocarbonleantechnologies,thepyroelec trolysisprocessforironextractionfromoxidemeltsisbeingproposedasaninterestingalternativetothe traditional steelmaking.Still,oneofthecriticalissuesimpactingtheprospectsofthistechnologyincludes the developmentofappropriateanodematerials,takingintoaccounttheextremelyaggressivenatureof oxidemeltsatveryhightemperatures.Hereweproposeauniqueconceptofconsumableanodefor pyroelectrolysisprocess,basedonmulticomponentferrospinelbasedceramics.Theelectrochemical studies andpostmortemXRD/SEM/EDSanalysisoftheelectrolysiscellshavedemonstratedthatceramic spinel anodescansustainsignificant currentdensitiesformakingtheprocessfeasible,whiletheir consumption byinteractionwithSicontainingspeciesfromthemoltenelectrolytewasfoundtobe moderate. |
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| Autores principais: | Ferreira, Nuno M. |
| Outros Autores: | Kovalevsky, Andrei V.; Ferro, Marta C.; Costa, Florinda M.; Frade, Jorge R. |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Aveiro |
| Idioma: | inglês |
| Origem: | RIA - Repositório Institucional da Universidade de Aveiro |
| Resumo: | Drivenbyenvironmentalchallengesandglobalmovementtocarbonleantechnologies,thepyroelec trolysisprocessforironextractionfromoxidemeltsisbeingproposedasaninterestingalternativetothe traditional steelmaking.Still,oneofthecriticalissuesimpactingtheprospectsofthistechnologyincludes the developmentofappropriateanodematerials,takingintoaccounttheextremelyaggressivenatureof oxidemeltsatveryhightemperatures.Hereweproposeauniqueconceptofconsumableanodefor pyroelectrolysisprocess,basedonmulticomponentferrospinelbasedceramics.Theelectrochemical studies andpostmortemXRD/SEM/EDSanalysisoftheelectrolysiscellshavedemonstratedthatceramic spinel anodescansustainsignificant currentdensitiesformakingtheprocessfeasible,whiletheir consumption byinteractionwithSicontainingspeciesfromthemoltenelectrolytewasfoundtobe moderate. |
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