Regeneration of an acidic ionic liquid catalyst by addition of brønsted acids
US9079176B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for regenerating deactivated acidic ionic liquid catalyst containing conjunct polymer is described. The method includes contacting the deactivated acidic ionic liquid catalyst containing the conjunct polymer with at least one Brønsted acid in a regeneration zone under regeneration conditions, resulting in a mixture comprising regenerated acidic ionic liquid catalyst, the Brønsted acid, the released conjunct polymer. The Brønsted acid is derived from a mineral acid and contains at least one organic group. The released conjunct polymer can be separated from the regenerated acidic ionic liquid catalyst and the at least one Brønsted acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.