Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction
Аутори
Mitterecker, JonasKošević, Milica

Stopić, Srećko

Friedrich, Bernd

Panić, Vladimir

Stevanović, Jasmina

Mihailović, Marija

Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Determination of the extractive behavior of ionic species from lateritic ore leachates is complex, since the leachates are pregnant with tens of different ions in, as a rule, multiple oxide states. To examine the possible pathways of intrinsic electrochemical extraction of the crucial elements Ni and Co, it was necessary to make model solutions of these elements and to subject them to electrochemical examination techniques in order to obtain a benchmark. Beside Ni and Co, the model system for Fe had to be evaluated. Iron, as a dominant ore component by far, is the main interfering factor in the extraction processes of Ni and Co in rather low amounts from leaching solution. The leachate examination results were compared to separate model solutions, as well as to their combinations in concentrations and to pH values comparable to those of the leachate. The separation of the leachate components was initially performed by continuous increase in pH upon leaching with NaOH solution, and afte...rwards the pH-adjusted solutions were subjected to electrochemical investigation. With the purpose of connecting and quantifying the visual changes in leachate upon increase in pH, conductometric measurements were performed. Reactions of oxidation/precipitations were indicated, which led to the essential Fe removal by precipitation. Resulting solutions were found suitable for Ni and Co electrochemical extraction.
Кључне речи:
Conductometry / Electrodeposition / Fe removal / Leachate / Metal ions extraction / SelectivityИзвор:
Metals, 2022, 12, 2, 325-Издавач:
- Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
Финансирање / пројекти:
- The Science Fund of the Republic of Serbia, Program DIASPORA, #GRANT No.6463002, CAPTAIN
DOI: 10.3390/met12020325
ISSN: 2075-4701
WoS: 000810520100001
Scopus: 2-s2.0-85124341132
Институција/група
IHTMTY - JOUR AU - Mitterecker, Jonas AU - Košević, Milica AU - Stopić, Srećko AU - Friedrich, Bernd AU - Panić, Vladimir AU - Stevanović, Jasmina AU - Mihailović, Marija PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5362 AB - Determination of the extractive behavior of ionic species from lateritic ore leachates is complex, since the leachates are pregnant with tens of different ions in, as a rule, multiple oxide states. To examine the possible pathways of intrinsic electrochemical extraction of the crucial elements Ni and Co, it was necessary to make model solutions of these elements and to subject them to electrochemical examination techniques in order to obtain a benchmark. Beside Ni and Co, the model system for Fe had to be evaluated. Iron, as a dominant ore component by far, is the main interfering factor in the extraction processes of Ni and Co in rather low amounts from leaching solution. The leachate examination results were compared to separate model solutions, as well as to their combinations in concentrations and to pH values comparable to those of the leachate. The separation of the leachate components was initially performed by continuous increase in pH upon leaching with NaOH solution, and afterwards the pH-adjusted solutions were subjected to electrochemical investigation. With the purpose of connecting and quantifying the visual changes in leachate upon increase in pH, conductometric measurements were performed. Reactions of oxidation/precipitations were indicated, which led to the essential Fe removal by precipitation. Resulting solutions were found suitable for Ni and Co electrochemical extraction. PB - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI) T2 - Metals T1 - Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction VL - 12 IS - 2 SP - 325 DO - 10.3390/met12020325 ER -
@article{ author = "Mitterecker, Jonas and Košević, Milica and Stopić, Srećko and Friedrich, Bernd and Panić, Vladimir and Stevanović, Jasmina and Mihailović, Marija", year = "2022", abstract = "Determination of the extractive behavior of ionic species from lateritic ore leachates is complex, since the leachates are pregnant with tens of different ions in, as a rule, multiple oxide states. To examine the possible pathways of intrinsic electrochemical extraction of the crucial elements Ni and Co, it was necessary to make model solutions of these elements and to subject them to electrochemical examination techniques in order to obtain a benchmark. Beside Ni and Co, the model system for Fe had to be evaluated. Iron, as a dominant ore component by far, is the main interfering factor in the extraction processes of Ni and Co in rather low amounts from leaching solution. The leachate examination results were compared to separate model solutions, as well as to their combinations in concentrations and to pH values comparable to those of the leachate. The separation of the leachate components was initially performed by continuous increase in pH upon leaching with NaOH solution, and afterwards the pH-adjusted solutions were subjected to electrochemical investigation. With the purpose of connecting and quantifying the visual changes in leachate upon increase in pH, conductometric measurements were performed. Reactions of oxidation/precipitations were indicated, which led to the essential Fe removal by precipitation. Resulting solutions were found suitable for Ni and Co electrochemical extraction.", publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)", journal = "Metals", title = "Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction", volume = "12", number = "2", pages = "325", doi = "10.3390/met12020325" }
Mitterecker, J., Košević, M., Stopić, S., Friedrich, B., Panić, V., Stevanović, J.,& Mihailović, M.. (2022). Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction. in Metals Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 12(2), 325. https://doi.org/10.3390/met12020325
Mitterecker J, Košević M, Stopić S, Friedrich B, Panić V, Stevanović J, Mihailović M. Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction. in Metals. 2022;12(2):325. doi:10.3390/met12020325 .
Mitterecker, Jonas, Košević, Milica, Stopić, Srećko, Friedrich, Bernd, Panić, Vladimir, Stevanović, Jasmina, Mihailović, Marija, "Electrochemical Investigation of Lateritic Ore Leaching Solutions for Ni and Co Ions Extraction" in Metals, 12, no. 2 (2022):325, https://doi.org/10.3390/met12020325 . .