Method for regenerating halogenated Lewis acid catalysts
US6034016A · kind A · utility
3Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | May 8, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/32
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for removing high molecular weight solid and liquid tars and oligomers from halogenated Lewis acids catalysts is disclosed. The Lewis acids incorporating such tars and oligomers are treated with an oxidizing agent such as chlorine, a halogen fluoride or mixtures thereof for a time and at a temperature sufficient to oxidize said solid tars and oligomers. The oxidation causes such tars and oligomers to form oxidation products, which can be separated from the halogenated Lewis acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.