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Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte
This research project investigated the selective removal of Co²⁺ and Ni²⁺ from a Co-Ni-Mn system through sulphide precipitation. The Co²⁺ and Ni²⁺ ions have adverse effects on the purity of the manganese product, thus, have to be removed via precipitation in a purification st...
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| Format: | Thesis |
| Language: | English |
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Department of Chemical Engineering
2015
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| _version_ | 1867613268337491969 |
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| access_status_str | Open Access |
| author | Dube, Vuyiswa |
| author2 | Lewis, Alison Emslie |
| author_browse | Dube, Vuyiswa Lewis, Alison Emslie |
| author_facet | Lewis, Alison Emslie Dube, Vuyiswa |
| author_sort | Dube, Vuyiswa |
| collection | Thesis |
| description | This research project investigated the selective removal of Co²⁺ and Ni²⁺ from a Co-Ni-Mn system through sulphide precipitation. The Co²⁺ and Ni²⁺ ions have adverse effects on the purity of the manganese product, thus, have to be removed via precipitation in a purification step. The main objective of this research was to understand the influence of local supersaturation on the purification process. This was important for controlling such a process to achieve residual ion concentrations of 0.3 ppm and 1.0 ppm for Co²⁺ and Ni²⁺ ions respectively, with minimum loss of the Mn²⁺ ions. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/13710 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:26.520Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Department of Chemical Engineering |
| publisherStr | Department of Chemical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/13710 Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte Dube, Vuyiswa Lewis, Alison Emslie Pascual, Marcos Rodriguez Chemical Engineering This research project investigated the selective removal of Co²⁺ and Ni²⁺ from a Co-Ni-Mn system through sulphide precipitation. The Co²⁺ and Ni²⁺ ions have adverse effects on the purity of the manganese product, thus, have to be removed via precipitation in a purification step. The main objective of this research was to understand the influence of local supersaturation on the purification process. This was important for controlling such a process to achieve residual ion concentrations of 0.3 ppm and 1.0 ppm for Co²⁺ and Ni²⁺ ions respectively, with minimum loss of the Mn²⁺ ions. 2015-08-12T04:04:26Z 2015-08-12T04:04:26Z 2015 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/13710 eng application/pdf Department of Chemical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Chemical Engineering Dube, Vuyiswa Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| thesis_degree_str | Master's |
| title | Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| title_full | Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| title_fullStr | Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| title_full_unstemmed | Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| title_short | Study of selective removal of CoS and NiS during purification of MnSO₄ electrolyte |
| title_sort | study of selective removal of cos and nis during purification of mnso 8324 electrolyte |
| topic | Chemical Engineering |
| url | http://hdl.handle.net/11427/13710 |
| work_keys_str_mv | AT dubevuyiswa studyofselectiveremovalofcosandnisduringpurificationofmnso8324electrolyte |