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coltan columbite tantalite COLTAN - Tantalite Ore Ta205, Tatalite Ore Lumb Tantalite Concentrate
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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Gandhinagar Highway, Ahmedabad, Gujarat 
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