Reactivation and passivation of spent cracking catalysts
US5188995A · kind A · utility
5Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
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 is reactivated by a process which comprises contacting the spent catalyst with at least one dissolved carboxylic acid and at least one antimony compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.