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US 12,006,230 B2Granted
Process for making a nickel composite hydroxide
AssigneeBASF SE
InventorsThorsten Beierling, Daniela Pfister
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AssigneeBASF SE
InventorsThorsten Beierling, Daniela Pfister
Estimating the term…
Described herein is a process for making a nickel composite hydroxide with a mean particle diameter d50 in the range from 3 to 20 μm including combining (a) an aqueous solution of water-soluble salts of nickel and of at least one of cobalt and manganese, and, optionally, at least one of Al, Mg, B, or transition metals other than nickel, cobalt, and manganese, (b) an aqueous solution of an alkali metal hydroxide and (c) an aqueous solution of alkali metal (bi)carbonate or ammonium (bi)carbonate in the molar ratio of 0.001:1 to 0.04:1, and, optionally, (d) an aqueous solution of alkali metal aluminate, in a continuous stirred tank reactor or in a cascade of at least two continuous stirred tank reactors.
A nickel composite hydroxide in particulate form with a mean particle diameter d50 in the range from 3 to 20 μm and a width of particle diameter distribution, calculated as [(d90−d10)/(d50)], of at least 0.61, containing in the range of from 60 to 95 mole-% Ni and at least one transition metal selected from the group consisting of Co and Mn, and in the range of from 0.1 to 3.0% by weight of carbonate, with respect to said nickel composite hydroxide.
Dependencies are inferred from the claim text.