Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vb metal
Reexamination Certificate
2005-01-18
2005-01-18
Bos, Steven (Department: 1754)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vb metal
C423S018000, C423S041000, C423S098000
Reexamination Certificate
active
06843970
ABSTRACT:
A process for recovering metal values from a metal containing material including the metal values comprising digesting the metal containing material in a sulfuric acid solution comprising sulfuric acid, a reducing agent, and a carbon source, heating the digestion mixture and separating the resulting solution from the remaining solids. The sulfuric acid solution may additionally include hydrofluoric acid (HF) as a source of fluoride ion.
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Bos Steven
Cabot Corporation
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