Indium recovery from acidic aqueous solutions by solvent extraction with D2EHPA: a statistical approach to the experimental design
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , |
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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Brazilian Journal of Chemical Engineering |
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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 |
_version_ |
1754213171470532608 |