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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Aug-15-2025 | 28703.8 $* | 29277.19 $* |
Jul-15-2025 | 23279.46 $* | 23745.17 $* |
Jun-15-2025 | 28251.66 $* | 28816.23 $* |
May-15-2025 | 28025.75 $* | 28586.54 $* |
Apr-15-2025 | 22375.33 $* | 22823.11 $* |
Mar-15-2025 | 27573.33 $* | 28124.65 $* |
Feb-15-2025 | 27347.45 $* | 27894.79 $* |
Jan-15-2025 | 27121.92 $* | 27663.68 $* |
The processing of tantalite-columbite ore is complex due to its low content and sophisticated composition. Usually, the enrichment flow sheet of tantalite-columbite covers rough concentration and fine selection. And for different tantalite-columbite mines, the specific flow sheet can be different.
For alluvial tantalite-columbite, the minerals are basically liberated from the gangue with the useful mineral density over 4g/cm3 and sometimes the minerals are magnetic. Gravity separation is mainly used as rough separation while combination of magnetic separation-gravity serration and magnetic separation-electric separation and floatation separation is adopted for the fine selection of rough concentrate from gravity separation.
Ta2O5 35 to 45%
Nb2O3 4% to 6%
Fe2O3 8% to 12%
SnO2 1 to 2%
Th 70 to 80 ppm
U 700 to 900 ppm
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