Invention Grant
- Patent Title: Method for the precipitation of particles of a metal carbonate material without use of a chelating agent
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Application No.: US16317981Application Date: 2017-07-11
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Publication No.: US11952287B2Publication Date: 2024-04-09
- Inventor: Line Holten Kollin , Rainer Küngas , Steen Henrik Olsen , Anni Stahl , Søren Dahl
- Applicant: HALDOR TOPSØE A/S
- Applicant Address: DK Kgs. Lyngby
- Assignee: HALDOR TOPSØE A/S
- Current Assignee: HALDOR TOPSØE A/S
- Current Assignee Address: DK Kgs. Lyngby
- Agency: Boone IP Law
- Priority: DK 201600434 2016.07.20
- International Application: PCT/EP2017/067360 2017.07.11
- International Announcement: WO2018/015207A 2018.01.25
- Date entered country: 2019-01-15
- Main IPC: C01G53/06
- IPC: C01G53/06 ; B01J19/18 ; C01G53/00 ; H01M4/02 ; H01M4/505 ; H01M4/525 ; H01M10/0525

Abstract:
In a method for the precipitation of particles of a metal carbonate material comprising nickel and manganese in an atomic ratio of 0≤Ni:Mn≤1:3, aqueous solutions comprising sulfates or nitrates of nickel and manganese are mixed with aqueous solutions of carbonates or mixtures of carbonates and hydroxides of sodium or potassium in a stirred reactor at pH>7.5 without the use of a chelating agent. Thereby agglomerated particles are formed without any subsequent process steps, in particular no subsequent process at temperatures higher than the precipitation temperature.
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