Process for producing metal powders
US7344584B2 · kind B2 · utility
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18References
15Claims
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Key dates
| Filing date | Sep 3, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Nov 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F9/305
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reactor. By employing an upward gas flow as opposed to the conventional downward gas flow, a closer approximation of theoretical plug-flow velocity profiles are achieved thusly resulting in a desirably narrower size particle distribution obviating or reducing the need for subsequent classification techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.