Process for preparing transition metal carbonates
AssigneeBASF SE
InventorsMartin Schulz-Dobrick, Simon Schroedle
Life of this patent
Estimating the term…
Abstract
A process for preparing transition metal carbonates with a mean particle diameter in the range from 6 to 19 μm (D50), which comprises combining, in a stirred vessel, at least one solution of at least one transition metal salt with at least one solution of at least one alkali metal carbonate or alkali metal hydrogencarbonate to prepare an aqueous suspension of transition metal carbonate, and, in at least one further compartment, continuously introducing a mechanical power in the range from 50 to 10 000 W/l in a proportion of the suspension in each case, based on the proportion of the suspension, and then recycling the proportion into the stirred vessel.
Claims11
A process, comprising:
- combining, in a stirred vessel, an aqueous solution of a transition metal salt with an aqueous solution of an alkali metal carbonate, alkali metal hydrogencarbonate, or any combination thereof, thereby obtaining an aqueous suspension of transition metal carbonate,
- withdrawing a volume of the suspension from the stirred vessel and supplying the volume to a further compartment.
- in the further compartment, continuously introducing a mechanical power of from 50 to 10 000 W/l in each case, based on the volume of the suspension in the further compartment, and then
- recycling the volume of the suspension from the further compartment back into the stirred vessel,
- thereby obtaining a transition metal carbonate with a mean particle diameter D50 of from 6 to 19 μm.
Dependencies are inferred from the claim text.