Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy

The leaching of copper ores produces a rich solution with metal interferences. In this context, Fe(III), Zn(II), and Mn(II) are three metals contained in industrial copper-rich solutions in high quantities and eventually can be co-extracted with the copper. The purpose of the current study was to de...

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Main Authors: Jonathan Castillo, Norman Toro, Pía Hernández, Patricio Navarro, Cristian Vargas, Edelmira Gálvez, Rossana Sepúlveda
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/11/10/1585
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author Jonathan Castillo
Norman Toro
Pía Hernández
Patricio Navarro
Cristian Vargas
Edelmira Gálvez
Rossana Sepúlveda
author_facet Jonathan Castillo
Norman Toro
Pía Hernández
Patricio Navarro
Cristian Vargas
Edelmira Gálvez
Rossana Sepúlveda
author_sort Jonathan Castillo
collection DOAJ
description The leaching of copper ores produces a rich solution with metal interferences. In this context, Fe(III), Zn(II), and Mn(II) are three metals contained in industrial copper-rich solutions in high quantities and eventually can be co-extracted with the copper. The purpose of the current study was to determine the feasibly of solvent extraction with the use of ionic liquid methyltrioctyl/decylammonium bis (2,4,4-trimethylpentyl)phosphinate (R<sub>4</sub>NCy) as an extractant of Cu(II) in the presence of Fe(III), Zn(II), and Mn(II). In general terms, the results showed a high single extraction efficiency of all the metals under study. In the case of Fe(III) and Zn(II), the extraction was close to 100%. On the contrary, the stripping efficiency was poor to Fe(III) and discrete to Zn(II), but very high to Cu(II) and Mn(II). Finally, the findings of this study suggest that the ionic liquid R<sub>4</sub>NCy is feasible for the pre-treatment of the copper solvent extraction process to remove metal impurities such as Fe(III) and Zn(II).
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spelling doaj.art-6495fc3385324231a8c322d0253444602023-11-22T19:09:04ZengMDPI AGMetals2075-47012021-10-011110158510.3390/met11101585Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCyJonathan Castillo0Norman Toro1Pía Hernández2Patricio Navarro3Cristian Vargas4Edelmira Gálvez5Rossana Sepúlveda6Departamento de Ingeniería en Metalurgia, Universidad de Atacama, Copiapó 1531772, ChileFaculty of Engineering and Architecture, Universidad Arturo Prat, Iquique 1100000, ChileDepartamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Avenida Angamos 601, Antofagasta 1270300, ChileDepartamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Santiago 9170124, ChileDepartamento de Ingeniería Metalúrgica, Facultad de Ingeniería, Universidad de Santiago de Chile (USACH), Santiago 9170124, ChileDepartment of Metallurgical and Mining Engineering, Universidad Católica del Norte, Avenida Angamos 0610, Antofagasta 1270709, ChileDepartamento de Ingeniería en Metalurgia, Universidad de Atacama, Copiapó 1531772, ChileThe leaching of copper ores produces a rich solution with metal interferences. In this context, Fe(III), Zn(II), and Mn(II) are three metals contained in industrial copper-rich solutions in high quantities and eventually can be co-extracted with the copper. The purpose of the current study was to determine the feasibly of solvent extraction with the use of ionic liquid methyltrioctyl/decylammonium bis (2,4,4-trimethylpentyl)phosphinate (R<sub>4</sub>NCy) as an extractant of Cu(II) in the presence of Fe(III), Zn(II), and Mn(II). In general terms, the results showed a high single extraction efficiency of all the metals under study. In the case of Fe(III) and Zn(II), the extraction was close to 100%. On the contrary, the stripping efficiency was poor to Fe(III) and discrete to Zn(II), but very high to Cu(II) and Mn(II). Finally, the findings of this study suggest that the ionic liquid R<sub>4</sub>NCy is feasible for the pre-treatment of the copper solvent extraction process to remove metal impurities such as Fe(III) and Zn(II).https://www.mdpi.com/2075-4701/11/10/1585ionic liquidssolvent extractiongreen chemistrymining
spellingShingle Jonathan Castillo
Norman Toro
Pía Hernández
Patricio Navarro
Cristian Vargas
Edelmira Gálvez
Rossana Sepúlveda
Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
Metals
ionic liquids
solvent extraction
green chemistry
mining
title Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
title_full Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
title_fullStr Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
title_full_unstemmed Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
title_short Extraction of Cu(II), Fe(III), Zn(II), and Mn(II) from Aqueous Solutions with Ionic Liquid R<sub>4</sub>NCy
title_sort extraction of cu ii fe iii zn ii and mn ii from aqueous solutions with ionic liquid r sub 4 sub ncy
topic ionic liquids
solvent extraction
green chemistry
mining
url https://www.mdpi.com/2075-4701/11/10/1585
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