Processes for separating components in alkyl perfluoroalkene ether production
US8592630B2 · kind B2 · utility
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Key dates
| Filing date | Sep 26, 2012 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Sep 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed are processes for reacting a perfluorinated olefin with an alcohol, an alkali metal hydroxide, and water in the presence of a phase transfer catalyst to form a reaction product mixture that separates into an aqueous phase and an organic phase. Alcohol may be present in an effective amount sufficient to form a third phase comprising at least 50% of the phase transfer catalyst. The third phase can be separated from the organic phase. Also disclosed are methods for recovering and recycling the phase transfer catalyst used in the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.