Hydrothermally stable high pore volume aluminum oxide/swellable clay composites and methods of their preparation and use
US6303531A · kind A · utility
39Cited by
53References
35Claims
0Family size
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Key dates
| Filing date | Jan 13, 2000 |
| Grant date | Oct 16, 2001 |
| Priority date | — |
| Expiry date | Jan 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/349
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Porous composite particles are provided which comprise an aluminum oxide component, e.g., crystalline boehmite, and a swellable clay component, e.g., synthetic hectorite, intimately dispersed within the aluminum oxide component at an amount effective to increase the hydrothermal stability, pore volume, and/or the mesopore pore mode of the composite particles relative to the absence of the swellable clay. Also provided is a method for making the composite particles, agglomerate particles derived therefrom, and a process for hydroprocessing petroleum feedstock using the agglomerates to support a hydroprocessing catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.