Innovative pre-concentration technology for recovering ultrafine ilmenite using superconducting high gradient magnetic separator
| Autor: | Hong Lv, Zhitao Yuan, Xuan Zhao, Lixia Li, Jiwei Lu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Superconductivity
Mining engineering. Metallurgy Materials science Ultrafine ilmenite Metallurgy TN1-997 Magnetic separation Energy Engineering and Power Technology chemistry.chemical_element EDS-Mapping engineering.material Geotechnical Engineering and Engineering Geology Superconducting high gradient magnetic separation Magnetic field chemistry.chemical_compound chemistry Pre-concentration Geochemistry and Petrology engineering Gangue Pre concentration Ilmenite Magnetite Titanium |
| Zdroj: | International Journal of Mining Science and Technology, Vol 31, Iss 6, Pp 1043-1052 (2021) |
| ISSN: | 2095-2686 |
| Popis: | To achieve the utilization of the abandoned ultrafine ilmenite (−20 μm) produced in the titanium magnetite processing plant in Panzhihua, the superconducting high-gradient magnetic separation (SMS) technology was proposed in this study. After optimizing the conditions of magnetic intensity, feeding and pulsation, an SMS concentrate with TiO2 grade of 16.03% and TiO2 recovery of 66.39% was obtained through one roughing–one cleaning pre-concentration flowsheet. The specific magnetic force and magnetic force were calculated and analysed to illustrate the pre-concentration mechanism, and the results revealed that the combination of high magnetic field and strong pulsating resulted in the effective pre-concentration of the ultrafine ilmenite in the SMS process. In addition, the magnetic force analysis indicated that the high magnetic intensity and high magnetic gradient are the key factors of the SMS technology. Furthermore, the EDS-Mapping detection certified that the ultrafine ilmenite was concentrated from the gangue minerals using SMS technology. |
| Databáze: | OpenAIRE |
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