C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
C01G 53/04 (2006.01) C22B 3/00 (2006.01)
Patent
CA 2452680
A process for preparing nickel hydroxide by alkaline precipitation from nickel salt solutions in the presence of complexing agents, in which the precipitation is carried out at at least two different locations in the same mother liquor with different precipitation kinetics at the different locations and the mother liquor is mixed prior to agglomeration of the precipitated primary crystals, is described.
L'invention concerne un procédé permettant de produire de l'hydroxyde de nickel par précipitation alcaline à partir de solutions de sel de nickel en présence d'agents complexants. La précipitation s'effectue en au moins deux différents points de la même eau mère, la cinétique de précipitation différant aux différents points. L'eau mère est mélangée avant l'agglomération des cristaux primaires précipités.
Albrecht Sven
Erb Michael
Gille Gerhard
Jahn Matthias
Maikowske Gerd
Fetherstonhaugh & Co.
H.c. Starck Gmbh
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