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

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...

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Autores principales: Barone, Vicente, Botto, Irma Lía
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102092
https://ri.conicet.gov.ar/11336/24372
http://ajrconline.org/AbstractView.aspx?PID=2013-6-8-11
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102092
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
spellingShingle Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
Barone, Vicente
Botto, Irma Lía
Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
topic_facet Química
Eucairite
Thermal effects
Acid oxidative effects
TGA and FTIR studies
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.
format Articulo
Articulo
author Barone, Vicente
Botto, Irma Lía
author_facet Barone, Vicente
Botto, Irma Lía
author_sort Barone, Vicente
title Thermal and Acid Oxidative Strategy to Recovery Selenium and Silver from Eucairite CuAgSe
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
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/102092
https://ri.conicet.gov.ar/11336/24372
http://ajrconline.org/AbstractView.aspx?PID=2013-6-8-11
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