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Study of a Copper Oxide Leaching in Alkaline Monosodium Glutamate Solution
Indexado
WoS WOS:001277668000001
Scopus SCOPUS_ID:85199646808
DOI 10.3390/MIN14070714
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Oxide copper minerals are commonly extracted via acidic leaching, using acids such as H2SO4, HCl, or HNO3. These strong acids are the most widely used because of their high dissolution kinetics. However, their main concern is the high acid consumption because copper oxide deposits contain large amounts of acid-consuming gangue. This paper proposes using an alternative aqueous alkaline monosodium glutamate (MSG) system to leach copper oxide minerals. Tenorite (CuO) was used as the copper oxide mineral under study. The influence of process variables (such as temperature and glutamate concentration) and kinetics of this system on copper leaching from tenorite were studied. The results showed that temperature has a significant effect on copper dissolution rates. Increased temperature from 15 degrees C to 60 degrees C enhanced the copper extraction from 9.1% to 97.7% after 2 h. Leaching kinetics were analyzed using the shrinking core model (SCM) under various conditions, indicating that the leaching rate presented a mixed control. This method, however, fails to describe leaching for broad particle sizes due to its requirement for single-sized solid grains. This study demonstrated that a large particle size distribution in tenorite supported a successful extension of the SCM for leaching it from mixed glutamate solutions. The activation energy for the 15-60 degrees C temperature range was calculated to be 102.6 kJ/mol for the chemical control.

Revista



Revista ISSN
Minerals 2075-163X

Métricas Externas



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Disciplinas de Investigación



WOS
Mineralogy
Mining & Mineral Processing
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Perea, C. G. - Universidad de Chile - Chile
Curtin Univ - Australia
Centro Avanzado de Tecnologia para la Mineria - Chile
WA School of Mines: Minerals, Energy and Chemical Engineering - Australia
2 IHLE-BASCUNAN, CHRISTIAN FELIPE Hombre Universidad de Chile - Chile
Shimin Engn - Chile
Shimin Engineering - Chile
3 Dyer, Laurence - Curtin Univ - Australia
WA School of Mines: Minerals, Energy and Chemical Engineering - Australia
4 Quezada, Simon Diaz - Universidad de Chile - Chile
Centro Avanzado de Tecnologia para la Mineria - Chile
4 Diaz-Quezada, Simon Hombre Centro Avanzado de Tecnologia para la Mineria - Chile
5 ESTAY-CUENCA, HUMBERTO ANTONIO Hombre Universidad de Chile - Chile
Centro Avanzado de Tecnologia para la Mineria - Chile

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Financiamiento



Fuente
FONDECYT
CODELCO
Curtin University of Technology
Anillo Project
ANID
Advance Mining Technology Center
ANID Chile through the ANID-PFCHA/National doctorate/2020
CODELCO through the "Piensa Mineria" contest
Universidad de Chile and Western Australian School of Mines
WASM

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
This research was funded by ANID Chile through the ANID-PFCHA/National doctorate/2020-21200126, ANID projects AFB220002/AFB230001, Fondecyt Project 1211044, Anillo Project ACT210027, CODELCO through the "Piensa Mineria" contest.
This research was funded by ANID Chile through the ANID-PFCHA/National doctorate/2020-21200126, ANID projects AFB220002/AFB230001, Fondecyt Project 1211044, Anillo Project ACT210027, CODELCO through the \u201CPiensa Miner\u00EDa\u201D contest.
This research was funded by ANID Chile through the ANID-PFCHA/National doctorate/2020-21200126, ANID projects AFB220002/AFB230001, Fondecyt Project 1211044, Anillo Project ACT210027, CODELCO through the \u201CPiensa Miner\u00EDa\u201D contest.

Muestra la fuente de financiamiento declarada en la publicación.