Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching
In the present work microwave treatment of electric arc furnace dust (EAFD) mixed with tetrabromobisphenol A (TBBPA) was investigated. A range of characterization techniques were used to understand the thermal behaviour of TBBPA-EAFD mixtures under microwave pyrolysis conditions. Dielectric and ther...
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Elsevier
2017
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| Online Access: | https://eprints.nottingham.ac.uk/47354/ |
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| author | Al-Harahsheh, Mohammad Kingman, S.W. Hamilton, Ian S. |
| author_facet | Al-Harahsheh, Mohammad Kingman, S.W. Hamilton, Ian S. |
| author_sort | Al-Harahsheh, Mohammad |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | In the present work microwave treatment of electric arc furnace dust (EAFD) mixed with tetrabromobisphenol A (TBBPA) was investigated. A range of characterization techniques were used to understand the thermal behaviour of TBBPA-EAFD mixtures under microwave pyrolysis conditions. Dielectric and thermal properties of EAFD, TBBPA and their mixtures were determined. Both the dielectric constant and loss factor of the mixture were found to vary considerably with temperature and subsequently it was found that the mixtures of these materials absorbed microwaves effectively, especially at temperatures above 170 °C. The high loss tangent of EAFD-TBBPA mixture above 170 °C resulted in fast heating and high temperatures (above 700 °C) resulting in reduction of Fe, Pb and Zn to their metallic form. This resulted in low recoveries of both Zn and Pb when the residue was leached in water. The recovery of Zn varied between 14 and 52 wt,%, while Pb recovery varied between 3 and 31 wt.% depending on microwave treatment efficiency. The low recovery of Zn and Pb could be ascribed by the reduction of metal oxides into their metallic form. More importantly this work has shown great selectivity in the leachability of both zinc and iron; with iron being left in the solid residue. |
| first_indexed | 2025-11-14T20:05:15Z |
| format | Article |
| id | nottingham-47354 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:05:15Z |
| publishDate | 2017 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | nottingham-473542020-05-04T19:19:42Z https://eprints.nottingham.ac.uk/47354/ Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching Al-Harahsheh, Mohammad Kingman, S.W. Hamilton, Ian S. In the present work microwave treatment of electric arc furnace dust (EAFD) mixed with tetrabromobisphenol A (TBBPA) was investigated. A range of characterization techniques were used to understand the thermal behaviour of TBBPA-EAFD mixtures under microwave pyrolysis conditions. Dielectric and thermal properties of EAFD, TBBPA and their mixtures were determined. Both the dielectric constant and loss factor of the mixture were found to vary considerably with temperature and subsequently it was found that the mixtures of these materials absorbed microwaves effectively, especially at temperatures above 170 °C. The high loss tangent of EAFD-TBBPA mixture above 170 °C resulted in fast heating and high temperatures (above 700 °C) resulting in reduction of Fe, Pb and Zn to their metallic form. This resulted in low recoveries of both Zn and Pb when the residue was leached in water. The recovery of Zn varied between 14 and 52 wt,%, while Pb recovery varied between 3 and 31 wt.% depending on microwave treatment efficiency. The low recovery of Zn and Pb could be ascribed by the reduction of metal oxides into their metallic form. More importantly this work has shown great selectivity in the leachability of both zinc and iron; with iron being left in the solid residue. Elsevier 2017-11-30 Article PeerReviewed Al-Harahsheh, Mohammad, Kingman, S.W. and Hamilton, Ian S. (2017) Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching. Journal of Analytical and Applied Pyrolysis, 128 . pp. 168-175. ISSN 0165-2370 EAFD; Dielectric Properties; Microwave treatment; Leaching; Zinc extraction; TBBPA http://www.sciencedirect.com/science/article/pii/S016523701730534X doi:10.1016/j.jaap.2017.10.013 doi:10.1016/j.jaap.2017.10.013 |
| spellingShingle | EAFD; Dielectric Properties; Microwave treatment; Leaching; Zinc extraction; TBBPA Al-Harahsheh, Mohammad Kingman, S.W. Hamilton, Ian S. Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title | Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title_full | Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title_fullStr | Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title_full_unstemmed | Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title_short | Microwave treatment of electric arc furnace dust with Tetrabromobisphenol A: Dielectric characterization and pyrolysis-leaching |
| title_sort | microwave treatment of electric arc furnace dust with tetrabromobisphenol a: dielectric characterization and pyrolysis-leaching |
| topic | EAFD; Dielectric Properties; Microwave treatment; Leaching; Zinc extraction; TBBPA |
| url | https://eprints.nottingham.ac.uk/47354/ https://eprints.nottingham.ac.uk/47354/ https://eprints.nottingham.ac.uk/47354/ |