Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe

Autores
Barone, Vicente; Botto, Irma Lía
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sulphides and selenides are mineral species that commonly occur together in natural deposits, according to the relative abundance. Moreover, the emerging importance of selenium in several fields of sciences, the economic value of the metal silver, commonly associated to selenide by chemical affinity and the existence of selenium deposits in Argentina lead to study the CuAgSe eucairite oxidation process in air atmosphere, by thermal and acid treatments in order to the Se and Ag recovery. The analysis was carried out with pure mineral by means of (TGA-DTGA) Thermogravimetric technique, X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR), Chemical analysis, Scanning Electron Microscopy (SEM-EDS) and treatments with HCl, H2SO4 and HNO3 (0.1 M, up to 180 min and 60 ºC). Thermal oxidation permits the separation of SeO2(g) from a solid residue in the 500-750 ºC range, whereas the adequate combination of soft acid and thermal treatments can be formulated as a potential strategy to separate Agº from a copper (II) solution.
Centro de Química Inorgánica
Materia
Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/102092

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network_name_str SEDICI (UNLP)
spelling Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSeBarone, VicenteBotto, Irma LíaQuímicaEucairiteThermal effectsAcid oxidative effectsTGA and FTIR studiesSulphides and selenides are mineral species that commonly occur together in natural deposits, according to the relative abundance. Moreover, the emerging importance of selenium in several fields of sciences, the economic value of the metal silver, commonly associated to selenide by chemical affinity and the existence of selenium deposits in Argentina lead to study the CuA<sub>g</sub>Se eucairite oxidation process in air atmosphere, by thermal and acid treatments in order to the Se and Ag recovery. The analysis was carried out with pure mineral by means of (TGA-DTGA) Thermogravimetric technique, X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR), Chemical analysis, Scanning Electron Microscopy (SEM-EDS) and treatments with HCl, H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> (0.1 M, up to 180 min and 60 ºC). Thermal oxidation permits the separation of SeO<sub>2</sub>(g) from a solid residue in the 500-750 ºC range, whereas the adequate combination of soft acid and thermal treatments can be formulated as a potential strategy to separate Agº from a copper (II) solution.Centro de Química Inorgánica2013-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf755-760http://sedici.unlp.edu.ar/handle/10915/102092enginfo:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/24372info:eu-repo/semantics/altIdentifier/url/http://ajrconline.org/AbstractView.aspx?PID=2013-6-8-11info:eu-repo/semantics/altIdentifier/issn/0974-4150info:eu-repo/semantics/altIdentifier/hdl/11336/24372info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:20:00Zoai:sedici.unlp.edu.ar:10915/102092Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:20:01.011SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
title Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
spellingShingle Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
Barone, Vicente
Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
title_short Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
title_full Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
title_fullStr Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
title_full_unstemmed Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
title_sort Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
dc.creator.none.fl_str_mv Barone, Vicente
Botto, Irma Lía
author Barone, Vicente
author_facet Barone, Vicente
Botto, Irma Lía
author_role author
author2 Botto, Irma Lía
author2_role author
dc.subject.none.fl_str_mv Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
topic Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
dc.description.none.fl_txt_mv Sulphides and selenides are mineral species that commonly occur together in natural deposits, according to the relative abundance. Moreover, the emerging importance of selenium in several fields of sciences, the economic value of the metal silver, commonly associated to selenide by chemical affinity and the existence of selenium deposits in Argentina lead to study the CuA<sub>g</sub>Se eucairite oxidation process in air atmosphere, by thermal and acid treatments in order to the Se and Ag recovery. The analysis was carried out with pure mineral by means of (TGA-DTGA) Thermogravimetric technique, X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR), Chemical analysis, Scanning Electron Microscopy (SEM-EDS) and treatments with HCl, H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> (0.1 M, up to 180 min and 60 ºC). Thermal oxidation permits the separation of SeO<sub>2</sub>(g) from a solid residue in the 500-750 ºC range, whereas the adequate combination of soft acid and thermal treatments can be formulated as a potential strategy to separate Agº from a copper (II) solution.
Centro de Química Inorgánica
description Sulphides and selenides are mineral species that commonly occur together in natural deposits, according to the relative abundance. Moreover, the emerging importance of selenium in several fields of sciences, the economic value of the metal silver, commonly associated to selenide by chemical affinity and the existence of selenium deposits in Argentina lead to study the CuA<sub>g</sub>Se eucairite oxidation process in air atmosphere, by thermal and acid treatments in order to the Se and Ag recovery. The analysis was carried out with pure mineral by means of (TGA-DTGA) Thermogravimetric technique, X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR), Chemical analysis, Scanning Electron Microscopy (SEM-EDS) and treatments with HCl, H<sub>2</sub>SO<sub>4</sub> and HNO<sub>3</sub> (0.1 M, up to 180 min and 60 ºC). Thermal oxidation permits the separation of SeO<sub>2</sub>(g) from a solid residue in the 500-750 ºC range, whereas the adequate combination of soft acid and thermal treatments can be formulated as a potential strategy to separate Agº from a copper (II) solution.
publishDate 2013
dc.date.none.fl_str_mv 2013-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/102092
url http://sedici.unlp.edu.ar/handle/10915/102092
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://ri.conicet.gov.ar/11336/24372
info:eu-repo/semantics/altIdentifier/url/http://ajrconline.org/AbstractView.aspx?PID=2013-6-8-11
info:eu-repo/semantics/altIdentifier/issn/0974-4150
info:eu-repo/semantics/altIdentifier/hdl/11336/24372
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
755-760
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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