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US 12,623,984 B2Granted
Azeotropic or azeotrope-like composition containing trifluoroethylene
AssigneeDaikin Industries, Ltd.
InventorKazuhiro Takahashi
Life of this patent
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Abstract
Provided are a novel azeotropic or azeotrope-like composition, and a separation method using the composition. An object is to provide a novel azeotropic or azeotrope-like composition, and a separation method using the composition. A solution to achieve the object is to provide an azeotropic or azeotrope-like composition containing trifluoroethylene and at least one compound selected from the group consisting of 1,1-difluoroethylene, fluoroethylene, and trifluoromethane.
Claims4
An azeotropic or azeotrope-like composition consisting of
- (a) trifluoroethylene,
- (b) at least one compound selected from the group consisting of fluoroethylene and trifluoromethane, and
- (c) at least one additional compound selected from the group consisting of fluoroethane, 2-chloro-1,1,1-trifluoroethane, 2,2-dichloro-1,1,1-trifluoroethane, and 1,2-difluoroethane, wherein the additional compound (c) is contained in an amount of 0.1 mass % or more and less than 1 mass % based on the entire azeotropic or azeotrope-like composition.
Dependencies are inferred from the claim text.