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

• Main Authors: KNUT EIKEMEYER, BERND MENDE, MATTHIAS HOHNE
• Format: Patent
• Language: English
• Published: 06.01.2000
• Edition: 7
• Subjects: BASIC ELECTRIC ELEMENTS; CASTING; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; PRETREATMENT OF RAW MATERIALS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; PRODUCTION AND REFINING OF METALS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

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...