Positive-electrode active material precursor for nonaqueous electrolyte secondary battery and method for manufacturing positive-electrode active material precursor for nonaqueous electrolyte secondary battery
US-11482703-B2 · Oct 25, 2022 · US
Process for precipitating a carbonate or (oxy)hydroxide
US11884554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11884554-B2 |
| Application number | US-201917041789-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2019 |
| Priority date | Mar 27, 2018 |
| Publication date | Jan 30, 2024 |
| Grant date | Jan 30, 2024 |
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- Title
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Abstract
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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).
First claim
Opening claim text (preview).
The invention claimed is: 1. 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). 2. The process of claim 1 , wherein the carbonate or (oxy)hydroxide comprises a transition metal selected from the group consisting of manganese and cobalt. 3. The process of claim 1 , wherein the stirrer element of (C) is selected from the group consisting of a stirrer disc, a blade, a paddle, and a bended cutout. 4. The process of claim 1 , wherein (B) is mounted to an internal surface of the vessel. 5. The process of claim 1 , wherein the vessel comprises a vessel lid and side walls, and wherein (B) is mounted between Rail the vessel lid and the side walls of the vessel. 6. The process of claim 1 , wherein the vessel is a stirred tank reactor. 7. The process of claim 1 , wherein the vessel does not comprise a separate compartment, an external loop or an additional pump in which precipitation of the carbonate or (oxy)hydroxide is carried out. 8. The process of claim 1 , wherein the carbonate or (oxy)hydroxide has an average particle diameter (D50) in a range of from 2 to 7 μm.
Assignees
Inventors
Classifications
Compounds containing nickel, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
Compounds containing manganese, with or without oxygen or hydrogen, and containing two or more other elements · CPC title
- C01G53/06Primary
Carbonates · CPC title
Chemistry & Metallurgy · mapped topic
Oxides · CPC title
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- What does patent US11884554B2 cover?
- 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 vess…
- Who is the assignee on this patent?
- Basf Se
- What technology area does this patent fall under?
- Primary CPC classification C01G53/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 30 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).