Title:
超微細コバルト金属粉末、それの製造方法、並びにこのコバルト金属粉末および炭酸コバルトの使用
Document Type and Number:
Japanese Patent JP4159000
Kind Code:
B2
Abstract:
Ultra-fine Co metal powder is composed of spherical or rice grain shaped crystallites. > 90% of the crystallites have a diameter from 0.5 to 2 mu m and the Na and C contents < 100 ppm and < 500 ppm respectively. Also claimed is a method for producing such Co powder by reacting a soluble Co salt with a solution or suspension of an alkali or alkaline earth metal or cobalt or ammonium carbonate and or hydrogen carbonate at pH 5.5 to 6.8, separating and washing the precipitated product with H2O, drying it and reducing the CoCO3 obtained to Co metal.
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Inventors:
Matthias Hone
Bernd Mende
Knut Aikemeyer
Bernd Mende
Knut Aikemeyer
Application Number:
JP29793496A
Publication Date:
October 01, 2008
Filing Date:
October 22, 1996
Export Citation:
Assignee:
H.C.Starck Gmbh
International Classes:
B22F9/20; B22F1/00; B22F9/16; B22F9/18; B22F9/22; B22F9/24; C01G51/04; C01G51/06; C22B23/00; H01M4/52
Domestic Patent References:
| JP7207301A | ||||
| JP60100606A |
Attorney, Agent or Firm:
Patent business corporation Odashima patent office
Heikichi Odashima
Heikichi Odashima