Introduction of Beneficiation Process of Tantalum and Niobium Ore
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Introduction of Beneficiation Process of Tantalum and Niobium Ore
In general, we divide tantalum and niobium ore into two types.One is tantalum-niobium ore with complex structure and complex composition,the other is tantalum-niobium ore with simple structure and single composition.
For complex tantalum-niobium ore, we generally use the combined beneficiation process of gravity separation, flotation and magnetic separation.
for example: No. 69 ore body in Jiangxi Dajishan tungsten mine is a large granite ore body containing tantalum, niobium and tungsten, the main minerals include wolframite, scheelite, tantalum-niobite and microlite.
Due to the extremely fine particle size of useful minerals in this mine, the recovery rate using a single beneficiation method is very low,They used a combined gravity separation-flotation process to recover tantalum and niobium. The final concentrate contains 10.84% tungsten trioxide and 51.8% tantalum pentoxide. The recovery rate is 69.92% (Ta2O5 recovery rate is 69.071%).
The following figure is a schematic diagram of the beneficiation process of a fine-grained tantalum-niobium mine in China:
Beneficiation technology of African tantalum and niobium mine:
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