Copper Smelting Slag Cleaning in an Electric Furnace by Using Waste Cooking Oil
| Autor: | Shiwei Zhou, Bo Li, Tifu Zhang, Yonggang Wei |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
0211 other engineering and technologies chemistry.chemical_element 02 engineering and technology 01 natural sciences Copper slag chemistry.chemical_compound Green cleaning 0103 physical sciences Materials Chemistry 021102 mining & metallurgy Magnetite 010302 applied physics Structural material business.industry Metallurgy Fossil fuel Metals and Alloys Slag Condensed Matter Physics Copper chemistry Mechanics of Materials visual_art visual_art.visual_art_medium business Carbon |
| Zdroj: | Metallurgical and Materials Transactions B. 51:2756-2768 |
| ISSN: | 1543-1916 1073-5615 |
| DOI: | 10.1007/s11663-020-01986-7 |
| Popis: | In view of the non-renewable reductant resources and carbon neutralization in the process of copper slag cleaning in an electric furnace, this study proposed to use waste cooking oil as reductant to replace fossil energy. Combined with the phase equilibrium theory and experimental results, the harm of excessive magnetite in the copper smelting slag to the cleaning process was clarified. The reduction thermodynamics of magnetite by using WCO is analyzed. A series of copper slag cleaning experiments with different WCO dosages along with various temperatures and settling durations was systematically carried out in a laboratory-scale electric furnace. The distribution of matte particles in each slag layer after cleaning was investigated in detail, which indicates that the copper content in the upper slag layer can be reduced to 0.56 wt pct via WCO reduction, realizing the green cleaning of copper slag. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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