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US 11,440,860 B2Granted
Dehydrohalogenation of hydrochlorofluorocarbons
AssigneeThe Chemours Company Fc, LLC
InventorsXuehui Sun, Karl Krause
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Abstract
A dehydrohalogenation product includes a hydrochlorofluorocarbon mixture of a fluoroolefin of formula RCX═CZQ and a halofluoroalkane of formula RCXYCZQT. R is a perfluorinated alkyl group and X, Z, and Q are independently H or halogen. One of Y and T is H and the other is Cl, Br, or I. About 80% or greater of the hydrochlorofluorocarbon mixture is the fluoroolefin. The dehydrohalogenation product also includes a caustic agent and a solvent. In some embodiments, the dehydrohalogenation product is free of any catalyst, including any phase transfer catalyst.
Claims23
A composition comprising:
- a hydrochlorofluorocarbon mixture comprising:
- a fluoroolefin of formula RCX═CZQ, wherein R is a perfluorinated alkyl group and X, Z, and Q are independently H or halogen;
- and
- a halofluoroalkane of formula RCXYCZQT, wherein one of Y and T is H and the other is Cl, Br, or I;
- wherein about 80% or greater of the hydrochlorofluorocarbon mixture is the fluoroolefin;
- a caustic agent;
- and
- a solvent.
5 more elements
Dependencies are inferred from the claim text.