Recovery of Cobalt from the Residues of an Industrial Zinc Refinery
The electrolytic production of metallic zinc from processing zinc sulfide concentrates generates a residue containing cadmium, copper, and cobalt that need to be removed from the electrolytic zinc solution because they are harmful to the zinc electro-winning process. This residue is commonly sent to...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-11-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/10/11/1553 |
| _version_ | 1797547164307554304 |
|---|---|
| author | Laurence Boisvert Keven Turgeon Jean-François Boulanger Claude Bazin Georges Houlachi |
| author_facet | Laurence Boisvert Keven Turgeon Jean-François Boulanger Claude Bazin Georges Houlachi |
| author_sort | Laurence Boisvert |
| collection | DOAJ |
| description | The electrolytic production of metallic zinc from processing zinc sulfide concentrates generates a residue containing cadmium, copper, and cobalt that need to be removed from the electrolytic zinc solution because they are harmful to the zinc electro-winning process. This residue is commonly sent to other parties that partly recover the contained elements. These elements can generate revenues if recovered at the zinc plant site. A series of laboratory tests were conducted to evaluate a method to process a zinc plant residue with the objective of recovering cobalt into a salable product. The proposed process comprises washing, selective leaching, purifying and precipitation of cobalt following its oxidation. The process allows the production of a cobalt rich hydroxide precipitate assaying 45 ± 4% Co, 0.8 ± 0.2% Zn, 4.4 ± 0.7% Cu, and 0.120 ± 0.004% Cd at a 61 ± 14% Co recovery. Replicating the whole process with different feed samples allowed the identification of the critical steps in the production of the cobalt product; one of these critical steps being the control of the oxidation conditions for the selective precipitation step. |
| first_indexed | 2024-03-10T14:39:22Z |
| format | Article |
| id | doaj.art-d139e8e79c2b4731accb3717929870ef |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T14:39:22Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-d139e8e79c2b4731accb3717929870ef2023-11-20T21:55:04ZengMDPI AGMetals2075-47012020-11-011011155310.3390/met10111553Recovery of Cobalt from the Residues of an Industrial Zinc RefineryLaurence Boisvert0Keven Turgeon1Jean-François Boulanger2Claude Bazin3Georges Houlachi4Department of Mining, Metallurgical and Materials Engineering, Université Laval, Québec, QC G1V 0A6, CanadaDepartment of Mining, Metallurgical and Materials Engineering, Université Laval, Québec, QC G1V 0A6, CanadaInstitut de Recherche sur les Mines et l’Environnement, Université du Québec en Abitibi Témiscamingue (UQAT), Rouyn-Noranda, QC J9X 5E4, CanadaDepartment of Mining, Metallurgical and Materials Engineering, Université Laval, Québec, QC G1V 0A6, CanadaInstitut de Recherche, Hydro-Québec, Varennes, QC J3X 1S1, CanadaThe electrolytic production of metallic zinc from processing zinc sulfide concentrates generates a residue containing cadmium, copper, and cobalt that need to be removed from the electrolytic zinc solution because they are harmful to the zinc electro-winning process. This residue is commonly sent to other parties that partly recover the contained elements. These elements can generate revenues if recovered at the zinc plant site. A series of laboratory tests were conducted to evaluate a method to process a zinc plant residue with the objective of recovering cobalt into a salable product. The proposed process comprises washing, selective leaching, purifying and precipitation of cobalt following its oxidation. The process allows the production of a cobalt rich hydroxide precipitate assaying 45 ± 4% Co, 0.8 ± 0.2% Zn, 4.4 ± 0.7% Cu, and 0.120 ± 0.004% Cd at a 61 ± 14% Co recovery. Replicating the whole process with different feed samples allowed the identification of the critical steps in the production of the cobalt product; one of these critical steps being the control of the oxidation conditions for the selective precipitation step.https://www.mdpi.com/2075-4701/10/11/1553zinc residuecobalt hydroxidecementationleachingoxidative precipitation |
| spellingShingle | Laurence Boisvert Keven Turgeon Jean-François Boulanger Claude Bazin Georges Houlachi Recovery of Cobalt from the Residues of an Industrial Zinc Refinery Metals zinc residue cobalt hydroxide cementation leaching oxidative precipitation |
| title | Recovery of Cobalt from the Residues of an Industrial Zinc Refinery |
| title_full | Recovery of Cobalt from the Residues of an Industrial Zinc Refinery |
| title_fullStr | Recovery of Cobalt from the Residues of an Industrial Zinc Refinery |
| title_full_unstemmed | Recovery of Cobalt from the Residues of an Industrial Zinc Refinery |
| title_short | Recovery of Cobalt from the Residues of an Industrial Zinc Refinery |
| title_sort | recovery of cobalt from the residues of an industrial zinc refinery |
| topic | zinc residue cobalt hydroxide cementation leaching oxidative precipitation |
| url | https://www.mdpi.com/2075-4701/10/11/1553 |
| work_keys_str_mv | AT laurenceboisvert recoveryofcobaltfromtheresiduesofanindustrialzincrefinery AT keventurgeon recoveryofcobaltfromtheresiduesofanindustrialzincrefinery AT jeanfrancoisboulanger recoveryofcobaltfromtheresiduesofanindustrialzincrefinery AT claudebazin recoveryofcobaltfromtheresiduesofanindustrialzincrefinery AT georgeshoulachi recoveryofcobaltfromtheresiduesofanindustrialzincrefinery |