Treatment method of composition containing fluorine-containing organic acid having carbon number of 2 to 7 and impurities
US10457625B2 · kind B2 · utility
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Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A treatment method of at least partially removing impurities from a composition containing a fluorine-containing organic acid having the carbon number of 2 to 7 and impurities, the method including a flocculant mixing step of mixing the composition and a flocculant; and a separating step of separating a mixed phase obtained at the mixing step into a solid phase and a liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.