High alumina brick with metallic carbide and its preparation
US5382555A · kind A · utility
3Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1993 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Oct 22, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/3826
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high alumina refractory and its preparation are disclosed. In addition to the mix of alumina particles providing an Al.sub.2 O.sub.3 content of at least 50%, by weight, there is included metallic carbide particles, having a critically-selected particle size distribution, in an amount between about 3 and about 25%, by weight, based on the total dry weight at the mixture. Other forms of carbon, like tar, pitch and graphite are omitted. The product is free from black core and has improved resistance to molten slags and metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.