Process for precipitating a carbonate or (oxy)hydroxide
AssigneeBASF SE
InventorsChristian Riemann, Thorsten Beierling, Matthias Rauls
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Abstract
Process for precipitating a carbonate or (oxy)hydroxide comprising nickel from an aqueous solution of a nickel salt wherein such process is carried out in a vessel comprising (A) a vessel body, (B) one or more elements that control the hydraulic flow of the slurry formed during the precipitation and that induce a loop-type circulation flow, and (C) a stirrer whose stirrer element is in the vessel but located separately from the element(s) (B).
Claims8
A process for precipitating a carbonate or (oxy)hydroxide comprising nickel from an aqueous solution, the process comprising combining an aqueous solution of at least two different metal salts of which one is a nickel salt with an aqueous solution of an alkali metal hydroxide or (hydrogen)carbonate,
- wherein the process is carried out in a vessel comprising
- (A) a vessel body,
- (B) an element that controls a hydraulic flow of a slurry formed during the precipitating and that induces a loop-type circulation flow, wherein (B) is selected from the group consisting of a draft tube and a guide vane, and
- (C) a stirrer whose stirrer element is in the vessel and located below (B).
Dependencies are inferred from the claim text.