Quasi-crystalline boehmites containing additives
US7208446B2 · kind B2 · utility
19Cited by
19References
72Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2002 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Jan 15, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2002/72
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.