Chemical beneficiation of raw material, containing...

Details Chemical beneficiation of raw material, containing... Chemical beneficiation of raw material, containing...

C - Chemistry, Metallurgy

22

B

C22B 34/24 (2006.01) C22B 3/14 (2006.01) C22B 60/02 (2006.01)

Patent

CA 2596708

The invention relates to a process for the chemical benef iciation of raw material containing tantalum-niobium such as wastes, scoria, concentrates and ores. The process comprises the step of decomposing the raw material with a carbonate-containing solution of ammonium fluoride in a reducing medium for no longer than 8 hours . The finally obtained mixture of tantalum and niobium oxides does not feature uranium contents which would render the mixture radioactive .

L'invention concerne un procédé d'enrichissement chimique d'une matière brute contenant du tantale-niobium telle que des déchets, des scories, des concentrés et des minerais.

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