Tantalum - making: tantalum niobium often accompanied by a variety of metals, tantalum concentrate smelting are the main steps of decomposition, purification and separation of tantalum, niobium, made of tantalum and niobium by pure compounds, finally making metal. Mineral decomposition can use hydrofluoric acid decomposition method, sodium hydroxide melting method and LvHuaFa, etc. Tantalum niobium separation of solvent extraction can be used (commonly used extraction agent for methyl isobutyl ketone, tributyl phosphate, sec-octyl alcohols and acetamide, etc.) and fractional crystallization method and ion exchange method.
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