Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , |
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=S0103-50532006000700023 |
Resumo: | It is studied the extraction of cadmium(II) ions from acidic aqueous solutions using a stirred transfer cell-type emulsion liquid membrane (ELM) prepared by dissolving in kerosene, with D2EHPA (an alkylphosphoric acid) as mobile carrier and Span-80 as surfactant. The ELM allowed efficient metal transport from the feed solution to the stripping liquor in experiments carried out at 25 ºC. The significant variables on cadmium transport through the membrane were extractant concentration and metal content in the feed metal-donor solution. Concentration of HCl as stripping agent affected only the initial metal extraction rate but not the extraction extent. The surfactant content used in this study stabilized the membrane adequately, but the use of a higher content produced a smaller initial extraction rate due to higher interfacial resistance. The experimental results suggest the possibility of recovering or removing valuable or toxic metals from dilute aqueous solution in an extractor based on emulsified liquid membranes. |
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Journal of the Brazilian Chemical Society (Online) |
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Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactorcadmiumliquid membraneemulsionextractionIt is studied the extraction of cadmium(II) ions from acidic aqueous solutions using a stirred transfer cell-type emulsion liquid membrane (ELM) prepared by dissolving in kerosene, with D2EHPA (an alkylphosphoric acid) as mobile carrier and Span-80 as surfactant. The ELM allowed efficient metal transport from the feed solution to the stripping liquor in experiments carried out at 25 ºC. The significant variables on cadmium transport through the membrane were extractant concentration and metal content in the feed metal-donor solution. Concentration of HCl as stripping agent affected only the initial metal extraction rate but not the extraction extent. The surfactant content used in this study stabilized the membrane adequately, but the use of a higher content produced a smaller initial extraction rate due to higher interfacial resistance. The experimental results suggest the possibility of recovering or removing valuable or toxic metals from dilute aqueous solution in an extractor based on emulsified liquid membranes.Sociedade Brasileira de Química2006-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000700023Journal of the Brazilian Chemical Society v.17 n.7 2006reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532006000700023info:eu-repo/semantics/openAccessBasualto,CarlosPoblete,MaritzaMarchese,JoséOchoa,ArielAcosta,AdolfoSapag,JaimeValenzuela,Fernandoeng2007-01-29T00:00:00Zoai:scielo:S0103-50532006000700023Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2007-01-29T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
title |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
spellingShingle |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor Basualto,Carlos cadmium liquid membrane emulsion extraction |
title_short |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
title_full |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
title_fullStr |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
title_full_unstemmed |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
title_sort |
Extraction of cadmium from aqueous solutions by emulsion liquid membranes using a stirred transfer cell contactor |
author |
Basualto,Carlos |
author_facet |
Basualto,Carlos Poblete,Maritza Marchese,José Ochoa,Ariel Acosta,Adolfo Sapag,Jaime Valenzuela,Fernando |
author_role |
author |
author2 |
Poblete,Maritza Marchese,José Ochoa,Ariel Acosta,Adolfo Sapag,Jaime Valenzuela,Fernando |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Basualto,Carlos Poblete,Maritza Marchese,José Ochoa,Ariel Acosta,Adolfo Sapag,Jaime Valenzuela,Fernando |
dc.subject.por.fl_str_mv |
cadmium liquid membrane emulsion extraction |
topic |
cadmium liquid membrane emulsion extraction |
description |
It is studied the extraction of cadmium(II) ions from acidic aqueous solutions using a stirred transfer cell-type emulsion liquid membrane (ELM) prepared by dissolving in kerosene, with D2EHPA (an alkylphosphoric acid) as mobile carrier and Span-80 as surfactant. The ELM allowed efficient metal transport from the feed solution to the stripping liquor in experiments carried out at 25 ºC. The significant variables on cadmium transport through the membrane were extractant concentration and metal content in the feed metal-donor solution. Concentration of HCl as stripping agent affected only the initial metal extraction rate but not the extraction extent. The surfactant content used in this study stabilized the membrane adequately, but the use of a higher content produced a smaller initial extraction rate due to higher interfacial resistance. The experimental results suggest the possibility of recovering or removing valuable or toxic metals from dilute aqueous solution in an extractor based on emulsified liquid membranes. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000700023 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532006000700023 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532006000700023 |
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.17 n.7 2006 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 |
_version_ |
1750318167426596864 |