Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iib metal
Patent
1996-11-25
2000-04-11
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iib metal
423139, C22B 1900, C01G 4900, C01G 5100
Patent
active
06048506&
ABSTRACT:
A process for the separation of unwanted ferric, iron and zinc impurities from a cobalt sulphate solution containing these impurities, the process including the steps of (i) reacting the cobalt sulphate solution with an organic reagent specific for the removal of iron and zinc at an initial pH of less 2.8 to remove the majority of the unwanted ferric iron impurities; and (ii) slowly raising the pH of the solution to about 3.5 in order to remove zinc impurities and any remaining ferric iron impurities.
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Fittock John E.
Price Malcolm J.
Reid John G.
Bos Steven
Queensland Nickel Pty. Ltd.
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