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Tantalum smelting steps


Tantalum niobium ore is the main raw material for the production of tantalum, but tantalum niobium ore is often accompanied by a variety of metals, so the main step of tantalum smelting is to decompose the concentrate, purify and separate tantalum and niobium to produce pure compounds of tantalum and niobium, and finally to produce metal.
Hydrofluoric acid decomposition method, sodium hydroxide melting method and chlorination method can be used for ore decomposition. Tantalum and niobium can be separated by solvent extraction method [commonly used extractants are methyl isobutyl copper (MIBK), tributyl phosphate (TBP), sec-octanol and acetamide, etc.], fractional crystallization method and ion exchange method.