Reactivation of spent cracking catalysts
US5141904A · kind A · utility
8Cited by
32References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1991 |
| Grant date | Aug 25, 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 at least one carboxylic acid (preferably at least one of formic acid, acetic acid, citric acid and lactic acid). The thus reactivated catalyst composition can be employed in a catalytic cracking process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.