Chromium extraction by microemulsions in two- and three-phase systems

Detalhes bibliográficos
Autor(a) principal: Melo, Keila Rejane de Oliveira
Data de Publicação: 2015
Outros Autores: Dantas, Tereza Neuma de Castro, Moura, Maria Carlenise Paiva de Alencar, Dantas Neto, Afonso Avelino, Oliveira, Mônica Rodrigues, Barros Neto, Eduardo Lins
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/45080
Resumo: Microemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium solution as the aqueous phase. Two- and three-phase microemulsion extraction methods were investigated in the experiments. Viscosity, effective diameter of the droplets, and extraction and re-extraction efficiencies were evaluated for each system. Two- and three-phase systems showed small variations in droplet diameter, which can be attributed to the formation of micellar structures. Chromium recovery efficiencies for the studied systems were over 96%. The re-extraction step showed that the stripping solution used can release more than 96% of the chromium from the microemulsion phase. Experimental results confirm that chromium can be recovered efficiently using microemulsion systems
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spelling Melo, Keila Rejane de OliveiraDantas, Tereza Neuma de CastroMoura, Maria Carlenise Paiva de AlencarDantas Neto, Afonso AvelinoOliveira, Mônica RodriguesBarros Neto, Eduardo Lins2021-11-30T12:41:11Z2021-11-30T12:41:11Z2015DANTAS NETO, Afonso Avelino; BARROS NETO, Eduardo Lins; MELO, Keila Rejane de Oliveira; MOURA, Maria Carlenise Paiva de Alencar; DANTAS, Tereza Neuma de Castro; OLIVEIRA, Mônica Rodrigues. Chromium extraction by microemulsions in two-and three-phase systems. Brazilian Journal of Chemical Engineering (Impresso), v. 32, n. 4, p. 949 - 956, 2015. Disponível em: https://www.scielo.br/j/bjce/a/RcsFQ4DF6Crwd5JQSsBVNmz/?lang=en. Acesso em: 26 jul. 2021. DOI: https://doi.org/10.1590/0104-6632.20150324s000029850104-66321678-4383https://repositorio.ufrn.br/handle/123456789/45080Microemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium solution as the aqueous phase. Two- and three-phase microemulsion extraction methods were investigated in the experiments. Viscosity, effective diameter of the droplets, and extraction and re-extraction efficiencies were evaluated for each system. Two- and three-phase systems showed small variations in droplet diameter, which can be attributed to the formation of micellar structures. Chromium recovery efficiencies for the studied systems were over 96%. The re-extraction step showed that the stripping solution used can release more than 96% of the chromium from the microemulsion phase. Experimental results confirm that chromium can be recovered efficiently using microemulsion systemsMicroemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium solution as the aqueous phase. Two- and three-phase microemulsion extraction methods were investigated in the experiments. Viscosity, effective diameter of the droplets, and extraction and re-extraction efficiencies were evaluated for each system. Two- and three-phase systems showed small variations in droplet diameter, which can be attributed to the formation of micellar structures. Chromium recovery efficiencies for the studied systems were over 96%. The re-extraction step showed that the stripping solution used can release more than 96% of the chromium from the microemulsion phase. Experimental results confirm that chromium can be recovered efficiently using microemulsion systemsAssociação Brasileira de Engenharia QuímicaAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessTannery sludgeChromiumMicroemulsionCoconut oil soapWinsor systemChromium extraction by microemulsions in two- and three-phase systemsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALChromiumExtractionMicroemulsions_BARROSNETO_2015.pdfChromiumExtractionMicroemulsions_BARROSNETO_2015.pdfArtigoapplication/pdf1140774https://repositorio.ufrn.br/bitstream/123456789/45080/1/ChromiumExtractionMicroemulsions_BARROSNETO_2015.pdf9510dca4ae6e81f3b7f460358e128fa6MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/45080/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81569https://repositorio.ufrn.br/bitstream/123456789/45080/3/license.txt6e6f57145bc87daf99079f06b081ff9fMD53123456789/450802021-11-30 09:43:13.314oai:https://repositorio.ufrn.br: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ório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-11-30T12:43:13Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Chromium extraction by microemulsions in two- and three-phase systems
title Chromium extraction by microemulsions in two- and three-phase systems
spellingShingle Chromium extraction by microemulsions in two- and three-phase systems
Melo, Keila Rejane de Oliveira
Tannery sludge
Chromium
Microemulsion
Coconut oil soap
Winsor system
title_short Chromium extraction by microemulsions in two- and three-phase systems
title_full Chromium extraction by microemulsions in two- and three-phase systems
title_fullStr Chromium extraction by microemulsions in two- and three-phase systems
title_full_unstemmed Chromium extraction by microemulsions in two- and three-phase systems
title_sort Chromium extraction by microemulsions in two- and three-phase systems
author Melo, Keila Rejane de Oliveira
author_facet Melo, Keila Rejane de Oliveira
Dantas, Tereza Neuma de Castro
Moura, Maria Carlenise Paiva de Alencar
Dantas Neto, Afonso Avelino
Oliveira, Mônica Rodrigues
Barros Neto, Eduardo Lins
author_role author
author2 Dantas, Tereza Neuma de Castro
Moura, Maria Carlenise Paiva de Alencar
Dantas Neto, Afonso Avelino
Oliveira, Mônica Rodrigues
Barros Neto, Eduardo Lins
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Melo, Keila Rejane de Oliveira
Dantas, Tereza Neuma de Castro
Moura, Maria Carlenise Paiva de Alencar
Dantas Neto, Afonso Avelino
Oliveira, Mônica Rodrigues
Barros Neto, Eduardo Lins
dc.subject.por.fl_str_mv Tannery sludge
Chromium
Microemulsion
Coconut oil soap
Winsor system
topic Tannery sludge
Chromium
Microemulsion
Coconut oil soap
Winsor system
description Microemulsion systems were used to remove chromium from an aqueous solution obtained from acid digestion of tannery sludge. The systems were composed by: coconut oil soap as surfactant, 1-butanol as cosurfactant, kerosene as the oil phase, and chromium solution as the aqueous phase. Two- and three-phase microemulsion extraction methods were investigated in the experiments. Viscosity, effective diameter of the droplets, and extraction and re-extraction efficiencies were evaluated for each system. Two- and three-phase systems showed small variations in droplet diameter, which can be attributed to the formation of micellar structures. Chromium recovery efficiencies for the studied systems were over 96%. The re-extraction step showed that the stripping solution used can release more than 96% of the chromium from the microemulsion phase. Experimental results confirm that chromium can be recovered efficiently using microemulsion systems
publishDate 2015
dc.date.issued.fl_str_mv 2015
dc.date.accessioned.fl_str_mv 2021-11-30T12:41:11Z
dc.date.available.fl_str_mv 2021-11-30T12:41:11Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.citation.fl_str_mv DANTAS NETO, Afonso Avelino; BARROS NETO, Eduardo Lins; MELO, Keila Rejane de Oliveira; MOURA, Maria Carlenise Paiva de Alencar; DANTAS, Tereza Neuma de Castro; OLIVEIRA, Mônica Rodrigues. Chromium extraction by microemulsions in two-and three-phase systems. Brazilian Journal of Chemical Engineering (Impresso), v. 32, n. 4, p. 949 - 956, 2015. Disponível em: https://www.scielo.br/j/bjce/a/RcsFQ4DF6Crwd5JQSsBVNmz/?lang=en. Acesso em: 26 jul. 2021. DOI: https://doi.org/10.1590/0104-6632.20150324s00002985
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/45080
dc.identifier.issn.none.fl_str_mv 0104-6632
1678-4383
identifier_str_mv DANTAS NETO, Afonso Avelino; BARROS NETO, Eduardo Lins; MELO, Keila Rejane de Oliveira; MOURA, Maria Carlenise Paiva de Alencar; DANTAS, Tereza Neuma de Castro; OLIVEIRA, Mônica Rodrigues. Chromium extraction by microemulsions in two-and three-phase systems. Brazilian Journal of Chemical Engineering (Impresso), v. 32, n. 4, p. 949 - 956, 2015. Disponível em: https://www.scielo.br/j/bjce/a/RcsFQ4DF6Crwd5JQSsBVNmz/?lang=en. Acesso em: 26 jul. 2021. DOI: https://doi.org/10.1590/0104-6632.20150324s00002985
0104-6632
1678-4383
url https://repositorio.ufrn.br/handle/123456789/45080
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 3.0 Brazil
http://creativecommons.org/licenses/by/3.0/br/
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dc.publisher.none.fl_str_mv Associação Brasileira de Engenharia Química
publisher.none.fl_str_mv Associação Brasileira de Engenharia Química
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