Direct processing of cellular ceramics from a single red mud precursor
Autor(a) principal: | |
---|---|
Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37036 |
Resumo: | The feasibility of recycling red mud waste by its direct transformation into highly-porous cellular ceramics was successfully demonstrated. Ceramic materials with designed cellular porosity were processed by emulsification of red mud suspensions with liquid paraffin. Taguchi method was used to study the effects provided by varying the red mud load in the suspension, gelatine content and emulsion stirring time on the micro structural features of the cellular ceramics. Additional experiments analysed the effects of the organic to suspension ratio and firing temperature. Emulsification of paraffin followed by gelatine consolidation, drying, elimination of the droplets of the discontinuous organic phase and firing, allowed one to design cellular ceramic pieces with open porosity up to 75%, consisting in interconnected cells with adjustable cell size and low resistance to percolation. These results allow one to consider prospective applications of red mud-based cellular ceramics with designed microstructures as highly-porous membranes for the capture of pollutants. |
id |
RCAP_f2c2d9800c7c85b78d99e509a7546709 |
---|---|
oai_identifier_str |
oai:ria.ua.pt:10773/37036 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Direct processing of cellular ceramics from a single red mud precursorPorous ceramicsWaste valorisationEmulsificationTaguchi methodThe feasibility of recycling red mud waste by its direct transformation into highly-porous cellular ceramics was successfully demonstrated. Ceramic materials with designed cellular porosity were processed by emulsification of red mud suspensions with liquid paraffin. Taguchi method was used to study the effects provided by varying the red mud load in the suspension, gelatine content and emulsion stirring time on the micro structural features of the cellular ceramics. Additional experiments analysed the effects of the organic to suspension ratio and firing temperature. Emulsification of paraffin followed by gelatine consolidation, drying, elimination of the droplets of the discontinuous organic phase and firing, allowed one to design cellular ceramic pieces with open porosity up to 75%, consisting in interconnected cells with adjustable cell size and low resistance to percolation. These results allow one to consider prospective applications of red mud-based cellular ceramics with designed microstructures as highly-porous membranes for the capture of pollutants.Elsevier2023-04-14T10:42:25Z2020-07-01T00:00:00Z2020-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37036eng0272-884210.1016/j.ceramint.2020.03.244Lopes, Daniela V.Durana, EduardoCesconeto, Francielly R.Almeida, Patrícia V.Kovalevsky, Andrei V.Quina, Margarida J.Frade, Jorge R.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:11:24Zoai:ria.ua.pt:10773/37036Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:07:41.656180Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Direct processing of cellular ceramics from a single red mud precursor |
title |
Direct processing of cellular ceramics from a single red mud precursor |
spellingShingle |
Direct processing of cellular ceramics from a single red mud precursor Lopes, Daniela V. Porous ceramics Waste valorisation Emulsification Taguchi method |
title_short |
Direct processing of cellular ceramics from a single red mud precursor |
title_full |
Direct processing of cellular ceramics from a single red mud precursor |
title_fullStr |
Direct processing of cellular ceramics from a single red mud precursor |
title_full_unstemmed |
Direct processing of cellular ceramics from a single red mud precursor |
title_sort |
Direct processing of cellular ceramics from a single red mud precursor |
author |
Lopes, Daniela V. |
author_facet |
Lopes, Daniela V. Durana, Eduardo Cesconeto, Francielly R. Almeida, Patrícia V. Kovalevsky, Andrei V. Quina, Margarida J. Frade, Jorge R. |
author_role |
author |
author2 |
Durana, Eduardo Cesconeto, Francielly R. Almeida, Patrícia V. Kovalevsky, Andrei V. Quina, Margarida J. Frade, Jorge R. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Lopes, Daniela V. Durana, Eduardo Cesconeto, Francielly R. Almeida, Patrícia V. Kovalevsky, Andrei V. Quina, Margarida J. Frade, Jorge R. |
dc.subject.por.fl_str_mv |
Porous ceramics Waste valorisation Emulsification Taguchi method |
topic |
Porous ceramics Waste valorisation Emulsification Taguchi method |
description |
The feasibility of recycling red mud waste by its direct transformation into highly-porous cellular ceramics was successfully demonstrated. Ceramic materials with designed cellular porosity were processed by emulsification of red mud suspensions with liquid paraffin. Taguchi method was used to study the effects provided by varying the red mud load in the suspension, gelatine content and emulsion stirring time on the micro structural features of the cellular ceramics. Additional experiments analysed the effects of the organic to suspension ratio and firing temperature. Emulsification of paraffin followed by gelatine consolidation, drying, elimination of the droplets of the discontinuous organic phase and firing, allowed one to design cellular ceramic pieces with open porosity up to 75%, consisting in interconnected cells with adjustable cell size and low resistance to percolation. These results allow one to consider prospective applications of red mud-based cellular ceramics with designed microstructures as highly-porous membranes for the capture of pollutants. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07-01T00:00:00Z 2020-07 2023-04-14T10:42:25Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/37036 |
url |
http://hdl.handle.net/10773/37036 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0272-8842 10.1016/j.ceramint.2020.03.244 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799137731214835712 |