Metal powders and processes for production from oxides
US4519837A · kind A · utility
15Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 26, 1984 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Apr 26, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B60/0291
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of forming metal powders from the liquid metal reduction of metal oxides are described. The methods described include the steps of low temperature liquid metal reduction of the oxide, agitation of the reduction reaction mixture and/or distillation of excess reductant upon completion of the reduction step. These steps are designed to limit agglomeration and enhance the purity of the final powder produced. Metal powder produced in accordance with this invention has a basic particle size of 0.1 to 0.5 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.