公开(公告)号：US20210300780A1

公开(公告)日：2021-09-30

申请号：US16317981

申请日：2017-07-11

Applicant: HALDOR TOPSØE A/S

Inventor： Line Holten KOLLIN ,  Rainer Küngas ,  Steen Henrik Olsen ,  Anni Stahl ,  Søren DAHL

IPC: C01G53/06 ,  C01G53/00 ,  B01J19/18

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.

公开(公告)号：US11952287B2

公开(公告)日：2024-04-09

申请号：US16317981

申请日：2017-07-11

Applicant: HALDOR TOPSØE A/S

Inventor： Line Holten Kollin ,  Rainer Küngas ,  Steen Henrik Olsen ,  Anni Stahl ,  Søren Dahl

IPC: C01G53/06 ,  B01J19/18 ,  C01G53/00 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525

CPC classification number: C01G53/06 ,  B01J19/1862 ,  C01G53/006 ,  C01P2002/72 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/40 ,  H01M2004/028 ,  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.