Modified microsphere FCC catalysts and manufacture thereof
US5559067A · kind A · utility
26Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/05
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An in situ process for making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin, gibbsite and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin whereby the gibbsite is hydrothermally converted to a transitional alumina, and reacting the microspheres composed of a mixture of spinel, transitional alumina and metakaolin with a seeded alkaline sodium silicate solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.