Process for preparing fluorocarboxylic acids
US7253315B2 · kind B2 · utility
1Cited by
6References
22Claims
0Family size
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Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A fluorocarboxylic acid preparation process which includes hydrolyzing fluorocarboxylic acid fluoride in the presence of an aqueous sulfuric acid solution to form a reaction product containing a fluorocarboxylic acid and hydrogen fluoride (present as hydrofluoric acid); and removing at least some of the hydrogen fluoride from the reaction product by washing the reaction production with aqueous sulfuric acid solution. The hydrolyzing and washing are carried out at a temperature at which the fluorocarboxylic acid is a liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.