Process of producing composite powder coated with noble metal
US4309458A · kind A · utility
7Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1979 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Oct 11, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2991
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Composite powder coated with a noble metal is produced by adding a powder of a metal or alloy baser than the noble metal to a powder of a metallic sulfide, carbon, activated charcoal, metallic carbide, or metallic oxide, and then adding to the resulting mixture a solution containing the noble metal with stirring. The particles of the composite powder are coated with the noble metal that results from a cementation reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.