Recovery of metal values and hydrofluoric acid from tantalum and

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal

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Details

423 18, 423 20, 423 63, 423 68, 423DIG14, 75374, 75 39P, 75622, 210688, B01D 1100

Patent

active

050230590

ABSTRACT:
A metallurgical processing system for economically recovering metal values, such as columbium, tantalum, thorium, and uranium from dilute source solids, such as digestion sludges, by a series of steps including:

REFERENCES:
patent: 4309389 (1982-01-01), Meyer
patent: 4446116 (1984-05-01), Krismer et al.
patent: 4451438 (1984-05-01), Flocter et al.
patent: 4619744 (1986-10-01), Horton

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