Modified microsphere FCC catalysts
US5395809A · kind A · utility
21Cited by
10References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 1, 1993 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Nov 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An in situ process for making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin, and reacting microspheres composed of a mixture of spinel and metakaolin forms of calcined clay with a seeded alkaline sodium silicate solution. The weight percent of hydrous kaolin in the starting (uncalcined) microspheres is greater than the spinel content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.