Reactivation of metal-contaminated cracking catalysts
US4935121A · kind A · utility
11Cited by
28References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Jun 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for reactivating a spent, metal-contaminated zeolite-containing cracking catalyst composition comprises the substantially simultaneous contacting with a fluorine compound (preferably HH.sub.4 F) and a metals passivating agent (preferably a compound of Sb or Ca). The thus reactivated cracking catalyst composition is employed in a catalytic cracking process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.