A Sustainable Methodology to Extract Bismuth from Secondary Sources

Detalhes bibliográficos
Autor(a) principal: Hespanhol,Maria C.
Data de Publicação: 2019
Outros Autores: Patrício,Pamela R., Silva,Luis H. M. da, Vargas,Silvia J. R., Rezende,Teresa C. S., Campos,Raquel A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019001102376
Resumo: Bismuth is a critical metal broadly used in cosmetic, medicine and metallurgy. However, its scarcity in Earth’s crust may impair further applications. An alternative is to recover bismuth from secondary sources. In this work, a methodology to extract bismuth from safety valves of discharged gas cylinders is proposed. Extraction and purification of bismuth were carried out using aqueous two-phase systems (ATPS) prepared with poly(ethylene oxide) polymer or poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) copolymer (L35) and electrolytes (NaNO3, NH4NO3, sodium citrate or Na2SO4). The influence of iodide extractant concentration, tie-line length, electrolyte nature and polymer hydrophobicity on the bismuth extraction behavior were evaluated. Bismuth was significantly recovered in the absence of extractant, and its extraction depends on the ATPS composition, macromolecule and electrolyte nature. After three consecutive extractions bismuth was obtained with high purity (94.7%), resulting on a recovery of 38.5 g of bismuth per 1.00 kg of fusible plug, using L35 + NH4NO3 + H2O ATPS, without any extractant.
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spelling A Sustainable Methodology to Extract Bismuth from Secondary Sourcesbismuthurban miningaqueous two-phase systemcritical metaldomestic wastegreen separationBismuth is a critical metal broadly used in cosmetic, medicine and metallurgy. However, its scarcity in Earth’s crust may impair further applications. An alternative is to recover bismuth from secondary sources. In this work, a methodology to extract bismuth from safety valves of discharged gas cylinders is proposed. Extraction and purification of bismuth were carried out using aqueous two-phase systems (ATPS) prepared with poly(ethylene oxide) polymer or poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) copolymer (L35) and electrolytes (NaNO3, NH4NO3, sodium citrate or Na2SO4). The influence of iodide extractant concentration, tie-line length, electrolyte nature and polymer hydrophobicity on the bismuth extraction behavior were evaluated. Bismuth was significantly recovered in the absence of extractant, and its extraction depends on the ATPS composition, macromolecule and electrolyte nature. After three consecutive extractions bismuth was obtained with high purity (94.7%), resulting on a recovery of 38.5 g of bismuth per 1.00 kg of fusible plug, using L35 + NH4NO3 + H2O ATPS, without any extractant.Sociedade Brasileira de Química2019-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019001102376Journal of the Brazilian Chemical Society v.30 n.11 2019reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.21577/0103-5053.20190147info:eu-repo/semantics/openAccessHespanhol,Maria C.Patrício,Pamela R.Silva,Luis H. M. daVargas,Silvia J. R.Rezende,Teresa C. S.Campos,Raquel A.eng2019-10-18T00:00:00Zoai:scielo:S0103-50532019001102376Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2019-10-18T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv A Sustainable Methodology to Extract Bismuth from Secondary Sources
title A Sustainable Methodology to Extract Bismuth from Secondary Sources
spellingShingle A Sustainable Methodology to Extract Bismuth from Secondary Sources
Hespanhol,Maria C.
bismuth
urban mining
aqueous two-phase system
critical metal
domestic waste
green separation
title_short A Sustainable Methodology to Extract Bismuth from Secondary Sources
title_full A Sustainable Methodology to Extract Bismuth from Secondary Sources
title_fullStr A Sustainable Methodology to Extract Bismuth from Secondary Sources
title_full_unstemmed A Sustainable Methodology to Extract Bismuth from Secondary Sources
title_sort A Sustainable Methodology to Extract Bismuth from Secondary Sources
author Hespanhol,Maria C.
author_facet Hespanhol,Maria C.
Patrício,Pamela R.
Silva,Luis H. M. da
Vargas,Silvia J. R.
Rezende,Teresa C. S.
Campos,Raquel A.
author_role author
author2 Patrício,Pamela R.
Silva,Luis H. M. da
Vargas,Silvia J. R.
Rezende,Teresa C. S.
Campos,Raquel A.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Hespanhol,Maria C.
Patrício,Pamela R.
Silva,Luis H. M. da
Vargas,Silvia J. R.
Rezende,Teresa C. S.
Campos,Raquel A.
dc.subject.por.fl_str_mv bismuth
urban mining
aqueous two-phase system
critical metal
domestic waste
green separation
topic bismuth
urban mining
aqueous two-phase system
critical metal
domestic waste
green separation
description Bismuth is a critical metal broadly used in cosmetic, medicine and metallurgy. However, its scarcity in Earth’s crust may impair further applications. An alternative is to recover bismuth from secondary sources. In this work, a methodology to extract bismuth from safety valves of discharged gas cylinders is proposed. Extraction and purification of bismuth were carried out using aqueous two-phase systems (ATPS) prepared with poly(ethylene oxide) polymer or poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) copolymer (L35) and electrolytes (NaNO3, NH4NO3, sodium citrate or Na2SO4). The influence of iodide extractant concentration, tie-line length, electrolyte nature and polymer hydrophobicity on the bismuth extraction behavior were evaluated. Bismuth was significantly recovered in the absence of extractant, and its extraction depends on the ATPS composition, macromolecule and electrolyte nature. After three consecutive extractions bismuth was obtained with high purity (94.7%), resulting on a recovery of 38.5 g of bismuth per 1.00 kg of fusible plug, using L35 + NH4NO3 + H2O ATPS, without any extractant.
publishDate 2019
dc.date.none.fl_str_mv 2019-11-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019001102376
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019001102376
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.21577/0103-5053.20190147
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.30 n.11 2019
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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