Deoxidation of a refractory metal
US5022935A · kind A · utility
34Cited by
6References
46Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1990 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Feb 22, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the deoxidation of a refractory metal containing minor concentrations of oxygen is disclosed. In this process the refractory metal is contacted with a metallic deoxidant in a dry, inert atmosphere. The metallic deoxidant and the refractory metal are heated to at least liquefy the metallic deoxidant and at least partially deoxidize the refractory metal. The refractory metal is thereafter cooled and contaminants on its surface are removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.