Process for preparing a supported tungsten carbide composition
US4325843A · kind A · utility
43Cited by
2References
6Claims
0Family size
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Key dates
| Filing date | Dec 8, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Dec 8, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/506
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a supported tungsten carbide composition which comprises first forming a supported tungsten oxide composition, converting the oxide to the nitride by heating in an ammonia atmosphere, and then converting the nitride to the carbide by heating in a carbiding atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.