Method for recovering entrained ionic liquid from an ionic liquid immiscible phase
US9328296B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for recovering entrained ionic liquid from an immiscible phase containing droplets of ionic liquid is described. The method includes contacting the immiscible phase containing the droplets of ionic liquid with a scrubbing ionic liquid phase in a scrubbing zone. The immiscible phase containing the droplets of ionic liquid has a first level of droplets of ionic liquid. At least a portion of the droplets of ionic liquid are transferred to the scrubbing ionic liquid phase to form a recovered ionic liquid phase comprising the scrubbing ionic liquid and the transferred portion of the droplets of ionic liquid and a second immiscible phase having a second level of droplets of ionic liquid lower than the first level. The second immiscible phase is separated from the recovered ionic liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.