Reduction of Waste Smelter Slags using Top-submerged Injection of Gases
The top-submerged injection method has been used to introduce methane and air mixtures into a waste smelter slag to reduce the dissolved nickel, cobalt and cuprous oxides. A number of parameters affecting the reduction rate have been investigated. These are total gas flowrate, methane to air ratio,...
| Main Authors: | , , |
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| Format: | Conference Paper |
| Language: | English |
| Published: |
Iron and Steel Society (ISS)
1996
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| Online Access: | http://hdl.handle.net/20.500.11937/81587 |
| _version_ | 1848764389796085760 |
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| author | Yan, X Yong Li, Nan Grimsey, Eric |
| author_facet | Yan, X Yong Li, Nan Grimsey, Eric |
| author_sort | Yan, X Yong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The top-submerged injection method has been used to introduce methane and air mixtures into a waste smelter slag to reduce the dissolved nickel, cobalt and cuprous oxides. A number of parameters affecting the reduction rate have been investigated. These are total gas flowrate, methane to air ratio, temperature, slag composition, orifice size and immersion depth of the lance. The results show that the reduction is enhanced with increase in the methane-to-air ratio, and by using a smaller orifice and deeper immersion of the lance. The maximum metal reductions achieved were 90 percent for nickel, 70 percent for cobalt, and 55 percent for copper, with ten percent of the gas achieving equilibration with the slag under these conditions. |
| first_indexed | 2025-11-14T11:18:35Z |
| format | Conference Paper |
| id | curtin-20.500.11937-81587 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:18:35Z |
| publishDate | 1996 |
| publisher | Iron and Steel Society (ISS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-815872021-02-04T05:34:46Z Reduction of Waste Smelter Slags using Top-submerged Injection of Gases Yan, X Yong Li, Nan Grimsey, Eric The top-submerged injection method has been used to introduce methane and air mixtures into a waste smelter slag to reduce the dissolved nickel, cobalt and cuprous oxides. A number of parameters affecting the reduction rate have been investigated. These are total gas flowrate, methane to air ratio, temperature, slag composition, orifice size and immersion depth of the lance. The results show that the reduction is enhanced with increase in the methane-to-air ratio, and by using a smaller orifice and deeper immersion of the lance. The maximum metal reductions achieved were 90 percent for nickel, 70 percent for cobalt, and 55 percent for copper, with ten percent of the gas achieving equilibration with the slag under these conditions. 1996 Conference Paper http://hdl.handle.net/20.500.11937/81587 English Iron and Steel Society (ISS) restricted |
| spellingShingle | Yan, X Yong Li, Nan Grimsey, Eric Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title | Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title_full | Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title_fullStr | Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title_full_unstemmed | Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title_short | Reduction of Waste Smelter Slags using Top-submerged Injection of Gases |
| title_sort | reduction of waste smelter slags using top-submerged injection of gases |
| url | http://hdl.handle.net/20.500.11937/81587 |