Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation
The possibility of enrichment and radioactivity reduction of zirconium concentrate obtained at the Obukhovsky mining and processing plant, located in the North Kazakhstan region, was investigated. The zircon concentrate was enriched and deactivated by dry magnetic separation and centrifugal air sepa...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Minerals |
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| Online Access: | https://www.mdpi.com/2075-163X/13/3/397 |
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| author | Victor Ivanovich Sachkov Roman Andreevich Nefedov Rodion Olegovych Medvedev Ivan Vyacheslavovich Amelichkin Anna Sergeevna Sachkova Pavel Sergeevich Shcherbakov Vladislav Sergeevich Solovyev Daniil Igorevich Leonov Danil Aleksandrovich Biryukov |
| author_facet | Victor Ivanovich Sachkov Roman Andreevich Nefedov Rodion Olegovych Medvedev Ivan Vyacheslavovich Amelichkin Anna Sergeevna Sachkova Pavel Sergeevich Shcherbakov Vladislav Sergeevich Solovyev Daniil Igorevich Leonov Danil Aleksandrovich Biryukov |
| author_sort | Victor Ivanovich Sachkov |
| collection | DOAJ |
| description | The possibility of enrichment and radioactivity reduction of zirconium concentrate obtained at the Obukhovsky mining and processing plant, located in the North Kazakhstan region, was investigated. The zircon concentrate was enriched and deactivated by dry magnetic separation and centrifugal air separation. The elements distribution over the grain surface of the obtained fractions was studied and the particle size distribution was determined by energy dispersive X-ray spectroscopy. The characteristics of the initial zircon concentrate were determined. The average particle size was 70 µm, the bulk density was 2.21 g/cm<sup>3</sup>, the true density was 4.05 g/cm<sup>3</sup>, the activity was 10.3 ± 0.6 kBq/kg, and the ZrO2 content was 44.85 wt.%. Dry magnetic separation was carried out at a magnetic induction value of 1.3 T in the separator working area and a feed rate of 5 g/min. Centrifugal air separation was carried out using a rotary classifier at rotor speeds of 3000, 980, and 600 rpm, consuming 2000 Nm<sup>3</sup> of air per hour and a concentrate flow of 20 kg/h. The scheme of zircon concentrate processing to produce three final products was proposed. The first is the zircon concentrate having a low activity (ZrO<sub>2</sub> content = 55.4 wt.%, P = 5.8 ± 0.6 kBq/kg). The second is the titanium-containing fraction having a low zirconium content (ZrO<sub>2</sub> content = 17.7 wt.%, P = 14.2 ± 0.6 kBq/kg). The third is the concentrate having a considerable zirconium content and high activity (ZrO<sub>2</sub> content = 23.5 wt.%, P = 12.8 ± 0.6 kBq/kg). |
| first_indexed | 2024-03-11T06:08:24Z |
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| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-11T06:08:24Z |
| publishDate | 2023-03-01 |
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| spelling | doaj.art-7f85b053f7fa494dbe35ec9dcf0f799c2023-11-17T12:48:02ZengMDPI AGMinerals2075-163X2023-03-0113339710.3390/min13030397Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air SeparationVictor Ivanovich Sachkov0Roman Andreevich Nefedov1Rodion Olegovych Medvedev2Ivan Vyacheslavovich Amelichkin3Anna Sergeevna Sachkova4Pavel Sergeevich Shcherbakov5Vladislav Sergeevich Solovyev6Daniil Igorevich Leonov7Danil Aleksandrovich Biryukov8Laboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaSchool of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaLaboratory of Chemical Technology, Faculty of Chemistry, National Research Tomsk State University, Lenin Avenue 36, 634050 Tomsk, RussiaSchool of Nuclear Science & Engineering, National Research Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, RussiaThe possibility of enrichment and radioactivity reduction of zirconium concentrate obtained at the Obukhovsky mining and processing plant, located in the North Kazakhstan region, was investigated. The zircon concentrate was enriched and deactivated by dry magnetic separation and centrifugal air separation. The elements distribution over the grain surface of the obtained fractions was studied and the particle size distribution was determined by energy dispersive X-ray spectroscopy. The characteristics of the initial zircon concentrate were determined. The average particle size was 70 µm, the bulk density was 2.21 g/cm<sup>3</sup>, the true density was 4.05 g/cm<sup>3</sup>, the activity was 10.3 ± 0.6 kBq/kg, and the ZrO2 content was 44.85 wt.%. Dry magnetic separation was carried out at a magnetic induction value of 1.3 T in the separator working area and a feed rate of 5 g/min. Centrifugal air separation was carried out using a rotary classifier at rotor speeds of 3000, 980, and 600 rpm, consuming 2000 Nm<sup>3</sup> of air per hour and a concentrate flow of 20 kg/h. The scheme of zircon concentrate processing to produce three final products was proposed. The first is the zircon concentrate having a low activity (ZrO<sub>2</sub> content = 55.4 wt.%, P = 5.8 ± 0.6 kBq/kg). The second is the titanium-containing fraction having a low zirconium content (ZrO<sub>2</sub> content = 17.7 wt.%, P = 14.2 ± 0.6 kBq/kg). The third is the concentrate having a considerable zirconium content and high activity (ZrO<sub>2</sub> content = 23.5 wt.%, P = 12.8 ± 0.6 kBq/kg).https://www.mdpi.com/2075-163X/13/3/397zirconium concentrateenrichmentactivity reductiondry magnetic separationcentrifugal air separation |
| spellingShingle | Victor Ivanovich Sachkov Roman Andreevich Nefedov Rodion Olegovych Medvedev Ivan Vyacheslavovich Amelichkin Anna Sergeevna Sachkova Pavel Sergeevich Shcherbakov Vladislav Sergeevich Solovyev Daniil Igorevich Leonov Danil Aleksandrovich Biryukov Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation Minerals zirconium concentrate enrichment activity reduction dry magnetic separation centrifugal air separation |
| title | Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation |
| title_full | Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation |
| title_fullStr | Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation |
| title_full_unstemmed | Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation |
| title_short | Zircon Concentrate Enrichment by Dry Magnetic Separation and Centrifugal Air Separation |
| title_sort | zircon concentrate enrichment by dry magnetic separation and centrifugal air separation |
| topic | zirconium concentrate enrichment activity reduction dry magnetic separation centrifugal air separation |
| url | https://www.mdpi.com/2075-163X/13/3/397 |
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