Process for producing transition metal powders by electrolysis in melted salt baths
US4770750A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Aug 20, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25C5/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to a process for producing transition metal powders by electrolysis in melted salt baths. This process is characterized in that electrolysis is performed in such a way that the deposition voltage of the transition metal is 0.1 to 0.4V below that of the alkali metal or alkaline earth metal which it is the easiest to reduce. It is used in the production of powders having dimensions between a few fractions of a micron and approximately 200 microns from metals belonging to groups IVb, Vb and VIb of the periodic classification of metals, such as e.g. titanium, zirconium and hafnium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.