The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants.
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/1241 |
Resumo: | Ion exchange resins can potentially be applied in cyanide recycling to address growing environmental concerns over the use of cyanide during gold extraction. In the present work the elution of copper-, iron-, and zinc-cyanocomplexes from polyacrylic- and polystyrene-based resins was studied. It was found that iron and copper cyanides are easily eluted from polyacrylic- and polystyrene-based ion exchange resins using either SCN- or NO3-. However, elution of the zinc cyanide complex from polystyrene-based resins was poor when using nitrate solution as eluant. Besides, an increase in elution temperature from 25 °C to 50 °C improved the elution of iron and zinc cyanides from polystyrene-based resins using a nitrate eluant; however temperature did not have any significant effect on other metal cyanocomplexes or for elution using thiocyanate. It was therefore proposed that the optimal combination of resin-eluant was site-specific, and depends on the features of the effluent, processing temperature, eluant concentration, and ion exchange resin under consideration. |
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Riani, Josiane CostaLeão, Versiane AlbisSilva, Carlos Antônio daSilva, Adarlêne MoreiraBertolino, Sueli MouraLuckey, G. C.2012-08-03T14:30:19Z2012-08-03T14:30:19Z2007RIANI, J. C. et al. The elution of metal cyanocomplexes from polyacrylic - and polystyrene- based ion exchange resins using nitrate and thiocyanate eluants. Brazilian Journal of Chemical Engineering, v. 24, n.3, p.421-431, jul-set. 2007. Disponível em: <http://www.scielo.br/pdf/bjce/v24n3/a11v24n3.pdf>. Acesso em: 03 ago. 2012.01046632http://www.repositorio.ufop.br/handle/123456789/1241Ion exchange resins can potentially be applied in cyanide recycling to address growing environmental concerns over the use of cyanide during gold extraction. In the present work the elution of copper-, iron-, and zinc-cyanocomplexes from polyacrylic- and polystyrene-based resins was studied. It was found that iron and copper cyanides are easily eluted from polyacrylic- and polystyrene-based ion exchange resins using either SCN- or NO3-. However, elution of the zinc cyanide complex from polystyrene-based resins was poor when using nitrate solution as eluant. Besides, an increase in elution temperature from 25 °C to 50 °C improved the elution of iron and zinc cyanides from polystyrene-based resins using a nitrate eluant; however temperature did not have any significant effect on other metal cyanocomplexes or for elution using thiocyanate. It was therefore proposed that the optimal combination of resin-eluant was site-specific, and depends on the features of the effluent, processing temperature, eluant concentration, and ion exchange resin under consideration.NitrateElutionGold extractionCyanide recyclingIon exchange resinsThe elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleTodo o conteúdo do periódico Brazilian Journal of Chemical Engineering, exceto onde identificado, está licenciado sob uma licença Creative Commons que permite copiar, distribuir e transmitir o trabalho em qualquer suporte ou formato desde que sejam citados o autor e o licenciante. Fonte: <http://www.scielo.br/scielo.php?script=sci_serial&pid=0104-6632&lng=en&nrm=iso>. Acesso em: 21 out. 2015info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://www.repositorio.ufop.br/bitstream/123456789/1241/5/license.txt8a4605be74aa9ea9d79846c1fba20a33MD55ORIGINALARTIGO_ElutionMetalCyanocomplexes.pdfARTIGO_ElutionMetalCyanocomplexes.pdfapplication/pdf244475http://www.repositorio.ufop.br/bitstream/123456789/1241/1/ARTIGO_ElutionMetalCyanocomplexes.pdfda49240ad214145fb6b9f405442c9430MD51123456789/12412019-02-28 12:44:08.872oai:localhost: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Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-02-28T17:44:08Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
title |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
spellingShingle |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. Riani, Josiane Costa Nitrate Elution Gold extraction Cyanide recycling Ion exchange resins |
title_short |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
title_full |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
title_fullStr |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
title_full_unstemmed |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
title_sort |
The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants. |
author |
Riani, Josiane Costa |
author_facet |
Riani, Josiane Costa Leão, Versiane Albis Silva, Carlos Antônio da Silva, Adarlêne Moreira Bertolino, Sueli Moura Luckey, G. C. |
author_role |
author |
author2 |
Leão, Versiane Albis Silva, Carlos Antônio da Silva, Adarlêne Moreira Bertolino, Sueli Moura Luckey, G. C. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Riani, Josiane Costa Leão, Versiane Albis Silva, Carlos Antônio da Silva, Adarlêne Moreira Bertolino, Sueli Moura Luckey, G. C. |
dc.subject.por.fl_str_mv |
Nitrate Elution Gold extraction Cyanide recycling Ion exchange resins |
topic |
Nitrate Elution Gold extraction Cyanide recycling Ion exchange resins |
description |
Ion exchange resins can potentially be applied in cyanide recycling to address growing environmental concerns over the use of cyanide during gold extraction. In the present work the elution of copper-, iron-, and zinc-cyanocomplexes from polyacrylic- and polystyrene-based resins was studied. It was found that iron and copper cyanides are easily eluted from polyacrylic- and polystyrene-based ion exchange resins using either SCN- or NO3-. However, elution of the zinc cyanide complex from polystyrene-based resins was poor when using nitrate solution as eluant. Besides, an increase in elution temperature from 25 °C to 50 °C improved the elution of iron and zinc cyanides from polystyrene-based resins using a nitrate eluant; however temperature did not have any significant effect on other metal cyanocomplexes or for elution using thiocyanate. It was therefore proposed that the optimal combination of resin-eluant was site-specific, and depends on the features of the effluent, processing temperature, eluant concentration, and ion exchange resin under consideration. |
publishDate |
2007 |
dc.date.issued.fl_str_mv |
2007 |
dc.date.accessioned.fl_str_mv |
2012-08-03T14:30:19Z |
dc.date.available.fl_str_mv |
2012-08-03T14:30:19Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
RIANI, J. C. et al. The elution of metal cyanocomplexes from polyacrylic - and polystyrene- based ion exchange resins using nitrate and thiocyanate eluants. Brazilian Journal of Chemical Engineering, v. 24, n.3, p.421-431, jul-set. 2007. Disponível em: <http://www.scielo.br/pdf/bjce/v24n3/a11v24n3.pdf>. Acesso em: 03 ago. 2012. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/1241 |
dc.identifier.issn.none.fl_str_mv |
01046632 |
identifier_str_mv |
RIANI, J. C. et al. The elution of metal cyanocomplexes from polyacrylic - and polystyrene- based ion exchange resins using nitrate and thiocyanate eluants. Brazilian Journal of Chemical Engineering, v. 24, n.3, p.421-431, jul-set. 2007. Disponível em: <http://www.scielo.br/pdf/bjce/v24n3/a11v24n3.pdf>. Acesso em: 03 ago. 2012. 01046632 |
url |
http://www.repositorio.ufop.br/handle/123456789/1241 |
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eng |
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eng |
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