Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant
As a waste resource, waste cooking oil (WCO) has not been widely used. Based on the characteristics of WCO cracking, this study proposed to replace fossil-based reductant with WCO for copper slag cleaning, to solve the problem of carbon neutralization in this process. Copper slag cleaning experiment...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2021-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100034W.pdf |
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| author | Wang L.-C. Wei Y.-G. Zhou S.-W. Li B. Wang H. |
| author_facet | Wang L.-C. Wei Y.-G. Zhou S.-W. Li B. Wang H. |
| author_sort | Wang L.-C. |
| collection | DOAJ |
| description | As a waste resource, waste cooking oil (WCO) has not been widely used. Based on the characteristics of WCO cracking, this study proposed to replace fossil-based reductant with WCO for copper slag cleaning, to solve the problem of carbon neutralization in this process. Copper slag cleaning experiments were carried out in a lab-scale electric furnace. The matte separated behavior from slag and the distribution of matte in slag were studied. The results showed that the Fe3O4 content decreases from 12.9 to 3.5 wt.% by injecting 2.2 mL of WCO into 300 g copper slag at 1250°C. The distribution of copper content in slag is gradient along the vertical direction. In the reduction stage, the excessive Fe3O4 is reduced and the fluidity of slag is improved. When the precipitation time is above 60 minutes, the copper content in the middle and upper slag is reduced to 0.57 wt.%, which realizes the copper slag cleaning by using WCO. |
| format | Article |
| id | doaj-art-d0bfe040bd4449558411e2e1a32c8a51 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-d0bfe040bd4449558411e2e1a32c8a512025-02-02T03:15:44ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-0157337938810.2298/JMMB210407034W1450-53392100034WMatte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductantWang L.-C.0Wei Y.-G.1Zhou S.-W.2Li B.3Wang H.4Kunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaKunming University of Science and Technology, Faculty of Metallurgical and Energy Engineering, Kunming, China + Kunming University of Science and Technology, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming, ChinaAs a waste resource, waste cooking oil (WCO) has not been widely used. Based on the characteristics of WCO cracking, this study proposed to replace fossil-based reductant with WCO for copper slag cleaning, to solve the problem of carbon neutralization in this process. Copper slag cleaning experiments were carried out in a lab-scale electric furnace. The matte separated behavior from slag and the distribution of matte in slag were studied. The results showed that the Fe3O4 content decreases from 12.9 to 3.5 wt.% by injecting 2.2 mL of WCO into 300 g copper slag at 1250°C. The distribution of copper content in slag is gradient along the vertical direction. In the reduction stage, the excessive Fe3O4 is reduced and the fluidity of slag is improved. When the precipitation time is above 60 minutes, the copper content in the middle and upper slag is reduced to 0.57 wt.%, which realizes the copper slag cleaning by using WCO.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100034W.pdfwaste cooking oilreductantcopper slagmatte |
| spellingShingle | Wang L.-C. Wei Y.-G. Zhou S.-W. Li B. Wang H. Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant Journal of Mining and Metallurgy. Section B: Metallurgy waste cooking oil reductant copper slag matte |
| title | Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| title_full | Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| title_fullStr | Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| title_full_unstemmed | Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| title_short | Matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| title_sort | matte separated behavior from slag during the cleaning process by using waste cooking oil as carbon neutral reductant |
| topic | waste cooking oil reductant copper slag matte |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100034W.pdf |
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