Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation
To comprehensively reuse copper ore tailings, the recovery of γ-Fe2O3 from magnetic roasted slag after sulfur release from copper ore tailings followed by magnetic separation is performed. In this work, after analysis of chemical composition and mineralogical phase composition, the effects of parame...
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De Gruyter
2021
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oai:doaj.org-article:4276795ae4844335af6195ced222f1c72021-12-05T14:10:44ZRecovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation2391-542010.1515/chem-2021-0194https://doaj.org/article/4276795ae4844335af6195ced222f1c72021-02-01T00:00:00Zhttps://doi.org/10.1515/chem-2021-0194https://doaj.org/toc/2391-5420To comprehensively reuse copper ore tailings, the recovery of γ-Fe2O3 from magnetic roasted slag after sulfur release from copper ore tailings followed by magnetic separation is performed. In this work, after analysis of chemical composition and mineralogical phase composition, the effects of parameters in both magnetization roasting and magnetic separation process with respect to roasting temperature, residence time, airflow, particle size distribution, magnetic field intensity, and the ratio of sodium dodecyl sulfonate to roasted slag were investigated. Under optimum parameters, a great number of γ-Fe2O3 is recycled with a grade of 66.86% and a yield rate of 67.21%. Meanwhile, the microstructure, phase transformation and magnetic property of copper ore tailings, roasted slag, and magnetic concentrate are carried out.Luo BingPeng TongjiangSun HongjuanDe Gruyterarticlecopper ore tailingsγ-fe2o3 recoverymagnetization roastingmagnetic separationChemistryQD1-999ENOpen Chemistry, Vol 19, Iss 1, Pp 128-137 (2021) |
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DOAJ |
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DOAJ |
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EN |
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copper ore tailings γ-fe2o3 recovery magnetization roasting magnetic separation Chemistry QD1-999 |
| spellingShingle |
copper ore tailings γ-fe2o3 recovery magnetization roasting magnetic separation Chemistry QD1-999 Luo Bing Peng Tongjiang Sun Hongjuan Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| description |
To comprehensively reuse copper ore tailings, the recovery of γ-Fe2O3 from magnetic roasted slag after sulfur release from copper ore tailings followed by magnetic separation is performed. In this work, after analysis of chemical composition and mineralogical phase composition, the effects of parameters in both magnetization roasting and magnetic separation process with respect to roasting temperature, residence time, airflow, particle size distribution, magnetic field intensity, and the ratio of sodium dodecyl sulfonate to roasted slag were investigated. Under optimum parameters, a great number of γ-Fe2O3 is recycled with a grade of 66.86% and a yield rate of 67.21%. Meanwhile, the microstructure, phase transformation and magnetic property of copper ore tailings, roasted slag, and magnetic concentrate are carried out. |
| format |
article |
| author |
Luo Bing Peng Tongjiang Sun Hongjuan |
| author_facet |
Luo Bing Peng Tongjiang Sun Hongjuan |
| author_sort |
Luo Bing |
| title |
Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| title_short |
Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| title_full |
Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| title_fullStr |
Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| title_full_unstemmed |
Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation |
| title_sort |
recovery of γ-fe2o3 from copper ore tailings by magnetization roasting and magnetic separation |
| publisher |
De Gruyter |
| publishDate |
2021 |
| url |
https://doaj.org/article/4276795ae4844335af6195ced222f1c7 |
| work_keys_str_mv |
AT luobing recoveryofgfe2o3fromcopperoretailingsbymagnetizationroastingandmagneticseparation AT pengtongjiang recoveryofgfe2o3fromcopperoretailingsbymagnetizationroastingandmagneticseparation AT sunhongjuan recoveryofgfe2o3fromcopperoretailingsbymagnetizationroastingandmagneticseparation |
| _version_ |
1718371783635107840 |