Process for activating halogenated catalysts, catalysts obtained by this process, and use of these catalysts in acid catalyst processes
US6194345A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 10, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process of activating a supported acid catalyst, and consists in the conversion of Lewis acid-type acid sites which are deposited on a solid substrate into activated acid sites in a non-oxydizing acid medium. The catalyst is exposed to a phase of activation in a medium containing a holohydric acid or a halohydric acid precursor, in the presence of at least one preferably parafinic hydrocarbon or hydrocarbon derivative, at a temperature greater than 20.degree. and preferably between 100.degree. C. and 250.degree. C., and at a pressure of between 10.sup.5 and 50,10.sup.6 Pa, for a length of time sufficient to ensure conversion into activated acid sites.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.