Process for dissolving tantalum/columbium materials...

Details Process for dissolving tantalum/columbium materials... Process for dissolving tantalum/columbium materials...

C - Chemistry, Metallurgy

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B

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C22B 61/00 (2006.01) C01G 33/00 (2006.01) C01G 35/00 (2006.01) C01G 35/02 (2006.01) C22B 3/00 (2006.01) C22B 34/24 (2006.01)

Patent

CA 1230975

PROCESS FOR DISSOLVING TANTALUM/COLUMBIUM MATERIALS CONTAINING ALKALI METAL IMPURITIES Abstract of the Disclosure Disclosed is a process for dissolving tantalum and/or columbium-containing materials contaminated with alkali metal impurities. The tantalum and columbium materials are digested in a solution comprising hydrofluoric acid and a fluosilicate-containing compound. The alkali metals are reacted to form precipitated fluosilicates, which then can readily be separated.

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