Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation

Solvent extraction (SX) is one of the most widely applied hydrometallurgical processes in copper production from oxide ore. As the high-grade ore deposits have been developed and depleted, now only low-grade ore deposits are being developed and are therefore facing obstacles of extreme processing co...

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Autores principales:	Sangyun Seo, Gwang Seop Lee, Hye Rim Kim, Jong-Gwan Kim
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper solvent extraction phase separation behaviour flocculant colloidal silica 2-hydroxy-5-nonyl acetophenone oxime (ketoxime) 5-nonylsalicylaldoxime (aldoxime) Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/191d25ec68f64c21b38444033f1d31f0
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id	oai:doaj.org-article:191d25ec68f64c21b38444033f1d31f0
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spelling	oai:doaj.org-article:191d25ec68f64c21b38444033f1d31f02021-11-25T18:21:55ZCharacterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation10.3390/met111117852075-4701https://doaj.org/article/191d25ec68f64c21b38444033f1d31f02021-11-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1785https://doaj.org/toc/2075-4701Solvent extraction (SX) is one of the most widely applied hydrometallurgical processes in copper production from oxide ore. As the high-grade ore deposits have been developed and depleted, now only low-grade ore deposits are being developed and are therefore facing obstacles of extreme processing conditions. This results in leaching gangue minerals and requires a more complicated solvent extraction system. Recently, synergistic solvent extraction has been introduced to separate copper from the leached solution with high impurities. However, operational obstacles arise due to the complicated solvent extraction process, including multi-stages of extraction, and using more than one extractant in a single solvent extraction system. The phase separation in solvent extraction is one of the major issues in field operation. A poor phase separation could affect the entire process and eventually cause production loss. Therefore, in this study, the phase separation behaviours were studied in consideration of the field operation. Major parameters considered in the study were the type of diluent, temperature, mixing speed, solution pH and Oxidation Reduction Potential (ORP), and addition of impurities (flocculant and colloidal silica). The phase separation behaviours in the continuous counter-current SX system using a pilot-scale mixer-settler in the above conditions was investigated.Sangyun SeoGwang Seop LeeHye Rim KimJong-Gwan KimMDPI AGarticlecopper solvent extractionphase separation behaviourflocculantcolloidal silica2-hydroxy-5-nonyl acetophenone oxime (ketoxime)5-nonylsalicylaldoxime (aldoxime)Mining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1785, p 1785 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper solvent extraction phase separation behaviour flocculant colloidal silica 2-hydroxy-5-nonyl acetophenone oxime (ketoxime) 5-nonylsalicylaldoxime (aldoxime) Mining engineering. Metallurgy TN1-997
spellingShingle	copper solvent extraction phase separation behaviour flocculant colloidal silica 2-hydroxy-5-nonyl acetophenone oxime (ketoxime) 5-nonylsalicylaldoxime (aldoxime) Mining engineering. Metallurgy TN1-997 Sangyun Seo Gwang Seop Lee Hye Rim Kim Jong-Gwan Kim Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
description	Solvent extraction (SX) is one of the most widely applied hydrometallurgical processes in copper production from oxide ore. As the high-grade ore deposits have been developed and depleted, now only low-grade ore deposits are being developed and are therefore facing obstacles of extreme processing conditions. This results in leaching gangue minerals and requires a more complicated solvent extraction system. Recently, synergistic solvent extraction has been introduced to separate copper from the leached solution with high impurities. However, operational obstacles arise due to the complicated solvent extraction process, including multi-stages of extraction, and using more than one extractant in a single solvent extraction system. The phase separation in solvent extraction is one of the major issues in field operation. A poor phase separation could affect the entire process and eventually cause production loss. Therefore, in this study, the phase separation behaviours were studied in consideration of the field operation. Major parameters considered in the study were the type of diluent, temperature, mixing speed, solution pH and Oxidation Reduction Potential (ORP), and addition of impurities (flocculant and colloidal silica). The phase separation behaviours in the continuous counter-current SX system using a pilot-scale mixer-settler in the above conditions was investigated.
format	article
author	Sangyun Seo Gwang Seop Lee Hye Rim Kim Jong-Gwan Kim
author_facet	Sangyun Seo Gwang Seop Lee Hye Rim Kim Jong-Gwan Kim
author_sort	Sangyun Seo
title	Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
title_short	Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
title_full	Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
title_fullStr	Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
title_full_unstemmed	Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation
title_sort	characterisation of parameters influencing the phase separation in copper solvent extraction systems using oxime-type extractants for the field operation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/191d25ec68f64c21b38444033f1d31f0
work_keys_str_mv	AT sangyunseo characterisationofparametersinfluencingthephaseseparationincoppersolventextractionsystemsusingoximetypeextractantsforthefieldoperation AT gwangseoplee characterisationofparametersinfluencingthephaseseparationincoppersolventextractionsystemsusingoximetypeextractantsforthefieldoperation AT hyerimkim characterisationofparametersinfluencingthephaseseparationincoppersolventextractionsystemsusingoximetypeextractantsforthefieldoperation AT jonggwankim characterisationofparametersinfluencingthephaseseparationincoppersolventextractionsystemsusingoximetypeextractantsforthefieldoperation
_version_	1718411243073568768

Characterisation of Parameters Influencing the Phase Separation in Copper Solvent Extraction Systems Using Oxime-Type Extractants for the Field Operation

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