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1. (WO2018015207) A METHOD FOR THE PRECIPITATION OF PARTICLES OF A METAL CARBONATE MATERIAL WITHOUT USE OF A CHELATING AGENT

Pub. No.:    WO/2018/015207    International Application No.:    PCT/EP2017/067360
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Wed Jul 12 01:59:59 CEST 2017
IPC: C01G 53/06
C01G 45/00
C01G 53/00
C01B 32/60
H01M 4/131
H01M 4/505
H01M 4/525
H01M 10/0525
Applicants: HALDOR TOPSØE A/S
Inventors: KOLLIN, Line, Holten
KÜNGAS, Rainer
OLSEN, Steen, Henrik
STAHL, Anni
DAHL, Søren
Title: A METHOD FOR THE PRECIPITATION OF PARTICLES OF A METAL CARBONATE MATERIAL WITHOUT USE OF A CHELATING AGENT
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.