Methods and apparatuses for producing metallic compositions via reduction of metal halides
US7559969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22B34/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention is generally directed towards a method for producing a solid metallic composition by reacting a gaseous metal halide with a reducing agent are described. In one embodiment, the method includes reacting a gaseous metal halide with a reducing agent in a manner effective to form a nonsolid reaction product, wherein the metal halide has the formula MXi, in which M is a metal selected from a transition metal of the periodic table, aluminum, silicon, boron, and combinations thereof, X is a halogen, i is greater than 0, and the reducing agent is a gaseous reducing agent selected from hydrogen and a compound that releases hydrogen, and combinations thereof; and solidifying the reaction product, thereby forming a metallic composition comprising M that is substantially free from halides. The invention may be used to produce high-purity metallic compositions, particularly titanium particles and alloys thereof for use in powder metallurgy applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.