The elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants.

dc.contributor.authorRiani, Josiane Costa
dc.contributor.authorLeão, Versiane Albis
dc.contributor.authorSilva, Carlos Antônio da
dc.contributor.authorSilva, Adarlêne Moreira
dc.contributor.authorBertolino, Sueli Moura
dc.contributor.authorLuckey, G. C.
dc.date.accessioned2012-08-03T14:30:19Z
dc.date.available2012-08-03T14:30:19Z
dc.date.issued2007
dc.description.abstractIon 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.pt_BR
dc.identifier.citationRIANI, 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.pt_BR
dc.identifier.issn01046632
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/1241
dc.language.isoen_USpt_BR
dc.rights.licenseTodo 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. 2015
dc.subjectNitratept_BR
dc.subjectElutionpt_BR
dc.subjectGold extractionpt_BR
dc.subjectCyanide recyclingpt_BR
dc.subjectIon exchange resinspt_BR
dc.titleThe elution of metal cyanocomplexes from polyacrylic - and polystyrene-based ion exchange resins using nitrate and thiocyanate eluants.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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