Process for restoring deactivated catalysts
US4937215A · kind A · utility
39Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Oct 12, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/517
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for restoring deactivated catalysts containing zeolite with a noble metal of Group VIII of the Periodic Table and to be used in the production of aromatic compounds, wherein decoking of the deactivated catalysts is carried out in the presence of halogen or a halogen-containing compound. This restoration process permits effective restoration of deactivated catalysts and thus is expected to be employed in the fields of petroleum purification, petrochemistry and so forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.