Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design

Detalhes bibliográficos
Autor(a) principal: Fortes,M.C.B.
Data de Publicação: 2003
Outros Autores: Martins,A.H., Benedetto,J.S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000200005
Resumo: This experimental work presents the optimization results of obtaining a high indium concentration solution and minimum iron poisoning by solvent extraction with D2EHPA solubilized in isoparaffin and exxsol. The variables studied in the extraction step were D2EHPA concentration, acidity of the aqueous phase and time of contact between phases. Different hydrochloric and sulfuric acid concentrations were studied for the stripping step. The optimum experimental conditions resulted in a solution with 99% indium extraction and less than 4% iron. The construction of a McCabe-Thiele diagram indicated two theoretical countercurrent stages for indium extraction and at least six stages for indium stripping. Finally, the influence of associated metals found in typical sulfate leach liquors from zinc plants was studied. Under the experimental conditions for maximum indium extraction, 96% indium extraction was obtained, iron extraction was about 4% and no Ga, Cu and Zn were co-extracted.
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spelling Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental designSolvent extractionindiumD2EHPAstatistical approachThis experimental work presents the optimization results of obtaining a high indium concentration solution and minimum iron poisoning by solvent extraction with D2EHPA solubilized in isoparaffin and exxsol. The variables studied in the extraction step were D2EHPA concentration, acidity of the aqueous phase and time of contact between phases. Different hydrochloric and sulfuric acid concentrations were studied for the stripping step. The optimum experimental conditions resulted in a solution with 99% indium extraction and less than 4% iron. The construction of a McCabe-Thiele diagram indicated two theoretical countercurrent stages for indium extraction and at least six stages for indium stripping. Finally, the influence of associated metals found in typical sulfate leach liquors from zinc plants was studied. Under the experimental conditions for maximum indium extraction, 96% indium extraction was obtained, iron extraction was about 4% and no Ga, Cu and Zn were co-extracted.Brazilian Society of Chemical Engineering2003-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000200005Brazilian Journal of Chemical Engineering v.20 n.2 2003reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322003000200005info:eu-repo/semantics/openAccessFortes,M.C.B.Martins,A.H.Benedetto,J.S.eng2003-06-25T00:00:00Zoai:scielo:S0104-66322003000200005Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2003-06-25T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
title Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
spellingShingle Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
Fortes,M.C.B.
Solvent extraction
indium
D2EHPA
statistical approach
title_short Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
title_full Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
title_fullStr Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
title_full_unstemmed Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
title_sort Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
author Fortes,M.C.B.
author_facet Fortes,M.C.B.
Martins,A.H.
Benedetto,J.S.
author_role author
author2 Martins,A.H.
Benedetto,J.S.
author2_role author
author
dc.contributor.author.fl_str_mv Fortes,M.C.B.
Martins,A.H.
Benedetto,J.S.
dc.subject.por.fl_str_mv Solvent extraction
indium
D2EHPA
statistical approach
topic Solvent extraction
indium
D2EHPA
statistical approach
description This experimental work presents the optimization results of obtaining a high indium concentration solution and minimum iron poisoning by solvent extraction with D2EHPA solubilized in isoparaffin and exxsol. The variables studied in the extraction step were D2EHPA concentration, acidity of the aqueous phase and time of contact between phases. Different hydrochloric and sulfuric acid concentrations were studied for the stripping step. The optimum experimental conditions resulted in a solution with 99% indium extraction and less than 4% iron. The construction of a McCabe-Thiele diagram indicated two theoretical countercurrent stages for indium extraction and at least six stages for indium stripping. Finally, the influence of associated metals found in typical sulfate leach liquors from zinc plants was studied. Under the experimental conditions for maximum indium extraction, 96% indium extraction was obtained, iron extraction was about 4% and no Ga, Cu and Zn were co-extracted.
publishDate 2003
dc.date.none.fl_str_mv 2003-06-01
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=S0104-66322003000200005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000200005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322003000200005
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.20 n.2 2003
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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