Quasi-crystalline boehmites containing additives
US6503867B1 · kind B1 · utility
15Cited by
19References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/3286
- 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, 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.