Reactivation of spent, metal-containing cracking catalysts
US5151391A · kind A · utility
6Cited by
27References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 15, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Feb 15, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spent metal contaminated zeolite-containing catalytic cracking catalyst composition is reactivated by a process which comprises contacting with an aqueous solution of HC1 and/or HNO.sub.3 and/or H.sub.2 SO.sub.4. The thus reactivated catalyst composition can be employed in a catalytic cracking process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.