Sintered spherical pellets
US7825053B2 · kind B2 · utility
28Cited by
134References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Jan 25, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/77
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Sintered, spherical composite pellets or particles comprising alumina fines, at least one of clay and bauxite and optionally a sintering aid, are described, along with a process for their manufacture. The use of such pellets in hydraulic fracturing of subterranean formations and in grinding is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.