Process for the production of sintered bauxite spheres
US4440866A · kind A · utility
85Cited by
9References
9Claims
0Family size
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Key dates
| Filing date | Oct 28, 1982 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Oct 28, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/51
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for producing high strength sintered bauxite spheres usable as fracture propping agents in oil or gas wells are produced by continuous spray-granulation of an aqueous binder-containing aluminous ore suspension to form granules which are subsequently sintered. Suitable starting materials include ores of high aluminum silicate content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.