Process for preparing fluorocarboxylic acids
US7126016B2 · kind B2 · utility
20Cited by
4References
13Claims
0Family size
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Key dates
| Filing date | Mar 24, 2005 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | May 6, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A fluorocarboxylic acid preparation process continuously carries out acidification reaction treatment and washing treatment, and includes subjecting a fluorocarboxylate-containing aqueous solution to acidification reaction treatment in the presence of sulfuric acid so as to form a sulfate-containing fluorocarboxylic acid phase; and subjecting the fluorocarboxylic acid phase to washing treatment using an aqueous sulfuric acid solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.