Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study
Pyro-metallurgical processes are multiphase in nature involving gas-liquid-solid interactions. In the Peirce-Smith converter operation, the additions of cold solids in liquid matte in the form of fluxing agents (silica sands) for slag liquidity, process scrap and reverts for temperature control is a...
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| Format: | Journal Article |
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Nauchno-Issledovatel'skii Institut Ukrmetallurginform
2011
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| Online Access: | http://www.metaljournal.com.ua/assets/Uploads/attachments/202Chibwe.pdf http://hdl.handle.net/20.500.11937/5533 |
| _version_ | 1848744823704518656 |
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| author | Chibwe, D. Akdogan, G. Eksteen, Jacques |
| author_facet | Chibwe, D. Akdogan, G. Eksteen, Jacques |
| author_sort | Chibwe, D. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Pyro-metallurgical processes are multiphase in nature involving gas-liquid-solid interactions. In the Peirce-Smith converter operation, the additions of cold solids in liquid matte in the form of fluxing agents (silica sands) for slag liquidity, process scrap and reverts for temperature control is a common practice. It is reasonable to postulate that with such practice, solid-liquid mass transfer step may play an important role in the performance and attainment of liquid bath homogeneity of the process. In this work, solid additions were simulated with sintered benzoic acid compacts spatially positioned in a 1:5 water model of a Peirce-Smith converter. Water and kerosene were used to simulate matte and slag respectively. Solid-liquid mass transfer was characterized by experimentally determined mass transfer coefficient, K (ms-1) values of benzoic acid sintered compacts and calculated dimensionless turbulence characteristic, Tc values. The mass transfer coefficients and dimensionless turbulence characteristic values were highest at the bath surface and near plume region. The values decreased in identified dead zones in the regions close to the circular side walls of the model. The results revealed that the mass transfer coefficients and turbulence characteristics were different with respect to different submergence levels of the compacts. These findings lead to the conclusion that the fluid flow was stratified within the vessel. |
| first_indexed | 2025-11-14T06:07:35Z |
| format | Journal Article |
| id | curtin-20.500.11937-5533 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:07:35Z |
| publishDate | 2011 |
| publisher | Nauchno-Issledovatel'skii Institut Ukrmetallurginform |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-55332017-01-30T10:46:49Z Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study Chibwe, D. Akdogan, G. Eksteen, Jacques Peirce-Smith converter Physical modelling mass transfer Pyro-metallurgical processes are multiphase in nature involving gas-liquid-solid interactions. In the Peirce-Smith converter operation, the additions of cold solids in liquid matte in the form of fluxing agents (silica sands) for slag liquidity, process scrap and reverts for temperature control is a common practice. It is reasonable to postulate that with such practice, solid-liquid mass transfer step may play an important role in the performance and attainment of liquid bath homogeneity of the process. In this work, solid additions were simulated with sintered benzoic acid compacts spatially positioned in a 1:5 water model of a Peirce-Smith converter. Water and kerosene were used to simulate matte and slag respectively. Solid-liquid mass transfer was characterized by experimentally determined mass transfer coefficient, K (ms-1) values of benzoic acid sintered compacts and calculated dimensionless turbulence characteristic, Tc values. The mass transfer coefficients and dimensionless turbulence characteristic values were highest at the bath surface and near plume region. The values decreased in identified dead zones in the regions close to the circular side walls of the model. The results revealed that the mass transfer coefficients and turbulence characteristics were different with respect to different submergence levels of the compacts. These findings lead to the conclusion that the fluid flow was stratified within the vessel. 2011 Journal Article http://hdl.handle.net/20.500.11937/5533 http://www.metaljournal.com.ua/assets/Uploads/attachments/202Chibwe.pdf Nauchno-Issledovatel'skii Institut Ukrmetallurginform fulltext |
| spellingShingle | Peirce-Smith converter Physical modelling mass transfer Chibwe, D. Akdogan, G. Eksteen, Jacques Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title | Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title_full | Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title_fullStr | Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title_full_unstemmed | Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title_short | Solid-liquid mass transfer in a Peirce-Smith converter: A physical modelling study |
| title_sort | solid-liquid mass transfer in a peirce-smith converter: a physical modelling study |
| topic | Peirce-Smith converter Physical modelling mass transfer |
| url | http://www.metaljournal.com.ua/assets/Uploads/attachments/202Chibwe.pdf http://hdl.handle.net/20.500.11937/5533 |