Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium

In nature, copper is presented predominantly as sulfide complexes, chalcopyrite (CuFeS2), bornite (Cu5FeS4), and chalcocite (Cu2S). Copper recovery from chalcopyrite by leaching is difficult due to chemical stability and involves using complex systems for long-term treatment. In the present work, an...

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Główni autorzy:	Mendez-Velasco, Carlos Uriel, Calla-Choque, Dandy, Fuentes-Rubio, Joshua Emmanuel, Reyna-Robelo, Mauricio Joaquin
Format:	Online
Język:	spa
Wydane:	Universida de Sonora 2023
Dostęp online:	https://epistemus.unison.mx/index.php/epistemus/article/view/274
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spelling	oai:http:--epistemus.unison.mx:article-2742023-08-22T17:57:53Z Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium Lixiviación de calcopirita con ácido etilendiaminotetraacético (EDTA) en medio oxidante Mendez-Velasco, Carlos Uriel Calla-Choque, Dandy Fuentes-Rubio, Joshua Emmanuel Reyna-Robelo, Mauricio Joaquin Chalcopyrite Hydrometallurgy Leaching EDTA Calcopirita Hidrometalurgia Lixiviación EDTA In nature, copper is presented predominantly as sulfide complexes, chalcopyrite (CuFeS2), bornite (Cu5FeS4), and chalcocite (Cu2S). Copper recovery from chalcopyrite by leaching is difficult due to chemical stability and involves using complex systems for long-term treatment. In the present work, an alternative for leaching chalcopyrite under controlled conditions is presented to evaluate the effect of pH, EDTA concentration, and hydrogen peroxide on copper recovery. With the help of a factorial design, the aim is to optimize the copper recovery process with less iron dissolution. According to the experimental results, a low concentration of EDTA (0.0006 M) promotes the selective dissolution of copper (20.04%) and low dissolution of iron (0.2%) at pH 4.5 and room temperature. El cobre en la naturaleza se presenta en forma predominante como complejos sulfurados, calcopirita (CuFeS2), bornita (Cu5FeS4) y calcosina (Cu2S). La recuperación de cobre a partir de calcopirita por lixiviación es un proceso complicado debido a la estabilidad química de este mineral y conlleva el uso de sistemas complejos para el tratamiento en tiempos prolongados. En este trabajo se presenta una alternativa para la lixiviación de calcopirita a condiciones contraladas con la finalidad de evaluar el efecto pH, concentración de EDTA y peróxido de hidrógeno para la recuperación de cobre. Con ayuda de un diseño factorial se busca optimizar el proceso de recuperación de cobre con una menor disolución de hierro. De acuerdo con los resultados experimentales, una baja concentración de EDTA (0.0006 M) promueve la disolución selectiva de cobre (20.04%) y una baja disolución hierro (0.2%) a pH 4.5 y temperatura ambiente. Universida de Sonora 2023-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion CienTecYSoc CienTecYSoc application/pdf https://epistemus.unison.mx/index.php/epistemus/article/view/274 10.36790/epistemus.v17i34.274 EPISTEMUS; Vol. 17 No. 34 (2023): Issue No. 34 EPISTEMUS; Vol. 17 Núm. 34 (2023): Revista No. 34 2007-8196 2007-4530 spa https://epistemus.unison.mx/index.php/epistemus/article/view/274/305 Derechos de autor 2023 EPISTEMUS https://creativecommons.org/licenses/by-nc-sa/4.0
institution	Epistemus
collection	OJS
language	spa
format	Online
author	Mendez-Velasco, Carlos Uriel Calla-Choque, Dandy Fuentes-Rubio, Joshua Emmanuel Reyna-Robelo, Mauricio Joaquin
spellingShingle	Mendez-Velasco, Carlos Uriel Calla-Choque, Dandy Fuentes-Rubio, Joshua Emmanuel Reyna-Robelo, Mauricio Joaquin Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
author_facet	Mendez-Velasco, Carlos Uriel Calla-Choque, Dandy Fuentes-Rubio, Joshua Emmanuel Reyna-Robelo, Mauricio Joaquin
author_sort	Mendez-Velasco, Carlos Uriel
title	Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
title_short	Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
title_full	Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
title_fullStr	Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
title_full_unstemmed	Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium
title_sort	chalcopyrite leaching with ethylenediaminetetraacetic acid (edta) in oxidizing medium
description	In nature, copper is presented predominantly as sulfide complexes, chalcopyrite (CuFeS2), bornite (Cu5FeS4), and chalcocite (Cu2S). Copper recovery from chalcopyrite by leaching is difficult due to chemical stability and involves using complex systems for long-term treatment. In the present work, an alternative for leaching chalcopyrite under controlled conditions is presented to evaluate the effect of pH, EDTA concentration, and hydrogen peroxide on copper recovery. With the help of a factorial design, the aim is to optimize the copper recovery process with less iron dissolution. According to the experimental results, a low concentration of EDTA (0.0006 M) promotes the selective dissolution of copper (20.04%) and low dissolution of iron (0.2%) at pH 4.5 and room temperature.
publisher	Universida de Sonora
publishDate	2023
url	https://epistemus.unison.mx/index.php/epistemus/article/view/274
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Chalcopyrite Leaching with Ethylenediaminetetraacetic Acid (EDTA) in Oxidizing Medium

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