Powder mixture for monolithic refractories containing graphite and a method of making thereof
US5246897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1992 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jul 31, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9684
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Hydrophilic graphite-base powder is provided wherein hydrophilic small particles of such as silicon carbide or silica are mixed with a graphite powder and the small particles are attached to each surface of the graphite particles by performing a mechanical impact treatment in a high-speed gas flow. By combining the graphite-base powders with refractory compound powders of such as magnesia or alumina to be a powder mixture for monolithic refractories containing graphite, a formed body of the powder mixture having a large bulk density can be provided and a service life thereof is comparable to that of a shaped refractory, and labor and energy necessary for the production process and the operation are saved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.