Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium

Detalhes bibliográficos
Autor(a) principal: Silva,Rafael Gudim da
Data de Publicação: 2010
Outros Autores: Silva,Cristiano Nunes da, Afonso,Júlio Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000900024
Resumo: The anode and the internal paste of spent Zn-C and alkaline batteries were leached with 2 mol L-1 H2SO4 at 80 ºC for 2 h. Solid/liquid ratio was 1/10 (g mL-1). The leachate was treated with Na2S in order to precipitate Hg, Cd and Pb. Zn was quantitatively isolated at pH 1,5-2 by adding Na2S. Mn can be precipitated at pH close to 7. Na2S may be replaced by oxalic acid. Zn precipitated at pH around 0, whereas Mn was quantitatively recovered at pH > 4. Acidity control is a critical parameter. Na2SO4 and carbon are the end products.
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spelling Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic mediumzincmanganesespent batteriesThe anode and the internal paste of spent Zn-C and alkaline batteries were leached with 2 mol L-1 H2SO4 at 80 ºC for 2 h. Solid/liquid ratio was 1/10 (g mL-1). The leachate was treated with Na2S in order to precipitate Hg, Cd and Pb. Zn was quantitatively isolated at pH 1,5-2 by adding Na2S. Mn can be precipitated at pH close to 7. Na2S may be replaced by oxalic acid. Zn precipitated at pH around 0, whereas Mn was quantitatively recovered at pH > 4. Acidity control is a critical parameter. Na2SO4 and carbon are the end products.Sociedade Brasileira de Química2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000900024Química Nova v.33 n.9 2010reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422010000900024info:eu-repo/semantics/openAccessSilva,Rafael Gudim daSilva,Cristiano Nunes daAfonso,Júlio Carloseng2011-01-13T00:00:00Zoai:scielo:S0100-40422010000900024Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-01-13T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
title Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
spellingShingle Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
Silva,Rafael Gudim da
zinc
manganese
spent batteries
title_short Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
title_full Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
title_fullStr Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
title_full_unstemmed Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
title_sort Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium
author Silva,Rafael Gudim da
author_facet Silva,Rafael Gudim da
Silva,Cristiano Nunes da
Afonso,Júlio Carlos
author_role author
author2 Silva,Cristiano Nunes da
Afonso,Júlio Carlos
author2_role author
author
dc.contributor.author.fl_str_mv Silva,Rafael Gudim da
Silva,Cristiano Nunes da
Afonso,Júlio Carlos
dc.subject.por.fl_str_mv zinc
manganese
spent batteries
topic zinc
manganese
spent batteries
description The anode and the internal paste of spent Zn-C and alkaline batteries were leached with 2 mol L-1 H2SO4 at 80 ºC for 2 h. Solid/liquid ratio was 1/10 (g mL-1). The leachate was treated with Na2S in order to precipitate Hg, Cd and Pb. Zn was quantitatively isolated at pH 1,5-2 by adding Na2S. Mn can be precipitated at pH close to 7. Na2S may be replaced by oxalic acid. Zn precipitated at pH around 0, whereas Mn was quantitatively recovered at pH > 4. Acidity control is a critical parameter. Na2SO4 and carbon are the end products.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S0100-40422010000900024
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000900024
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422010000900024
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 Química Nova v.33 n.9 2010
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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