Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Patent
1994-10-27
1997-02-25
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
4231501, C01G 4900, C01G 5100, C01G 5300
Patent
active
056056680
ABSTRACT:
A process for the preparation and purification of a cobalt oxide hydroxide intermediate from a cobalt sulphate solution containing cationic and anionic impurities, including the successive steps of (i) contacting the cobalt sulphate solution with an organic reagent to extract iron and zinc cationic impurities from the sulphate solution; (ii) extracting the cobalt from the sulphate solution with an organic reagent to produce a cobalt loaded organic phase substantially free of all anionic impurities; (iii) stripping the cobalt loaded organic phase with a concentrated ammoniacal ammonium carbonate solution to produce an ammoniacal ammonium carbonate strip liquor rich in cobalt II ammines; (iv) oxidizing the cobalt II ammines in the ammoniacal ammonium carbonate strip liquor to cobalt III tetraammines; (v) extracting the majority of nickel impurity from the cobalt III tetraammine rich ammoniacal liquor with an organic reagent; and (vi) recovering the cobalt from the cobalt III tetraammine rich ammoniacal liquor.
REFERENCES:
patent: 3767762 (1973-10-01), Kunda
patent: 3907966 (1975-09-01), Skarbo
patent: 3981968 (1976-09-01), Miller et al.
patent: 4053553 (1977-10-01), Reinhardt et al.
patent: 4153522 (1979-05-01), Arbiter et al.
patent: 4348367 (1982-09-01), Rickelton et al.
patent: 4432953 (1984-02-01), Hubred et al.
patent: 4434141 (1984-02-01), Hubred et al.
patent: 4514369 (1985-04-01), Hubred et al.
patent: 4515757 (1985-05-01), Hubred et al.
patent: 4563213 (1986-01-01), Hubred
patent: 4600435 (1986-07-01), Wiegers et al.
patent: 4610861 (1986-09-01), Babjak
patent: 4900522 (1990-02-01), Chou et al.
patent: 4956154 (1990-09-01), Magdics et al.
patent: 5010049 (1991-04-01), Villa-Garcia et al.
patent: 5174812 (1992-12-01), Price et al.
patent: 5228903 (1993-07-01), O'Keefe
Davis Michael R.
Fittock John E.
Price Malcolm J.
Reid John G.
White David T.
Bos Steven
Queensland Nickel Pyt. Ltd.
LandOfFree
Solvent extraction of cobalt from cobalt sulfate solution does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Solvent extraction of cobalt from cobalt sulfate solution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solvent extraction of cobalt from cobalt sulfate solution will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1972550