Patent · US Expired

Ultrafine cobalt metal powder, process for the production thereof and use of the cobalt metal powder and of cobalt carbonate

US6346137B1 · kind B1 · utility

6Cited by

3References

8Claims

0Family size

Assignee

H. C. Starck GmbH & Co. KG · DE

Inventors

Matthias Höhne · Sarnia, CA
Bernd Mende · Bad Harzburg, DE
Knut Eikemeyer · Clausthal-Zellerfeld, DE

Key dates

Filing date	Aug 28, 1998
Grant date	Feb 12, 2002
Priority date	—
Expiry date	Aug 28, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Ultrafine cobalt metal powder consisting of fine crystallites, wherein the crystallites, wherein the crystallitex exhibit a rice-grain shaped to spherical habit and more than 90% of the crystallites have a diameter in the range of from 0.5 to 2 &mgr;m, a process for the production of the cobalt metal powder via an intermediate stage of cobalt carbonate production, and processes and products re certain uses of the cobalt metal powder and the cobalt carbonate and an intermediate oxide so produced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.