Method for regenerating certain acidic hydrocarbon conversion catalysts by solvent extraction
US5326923A · kind A · utility
26Cited by
50References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1991 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Nov 22, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites promoted with Lewis acids (preferably BF.sub.3) which have been used in the alkylation of isoparaffins with olefins. The process involves the removal of some portion of the reaction product residue adhering to the solid catalyst by contact with a solvent to partially recover the catalyst's initial activity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.