Stable 2,3,3,3-tetrafluoropropene composition
AssigneeArkema France
InventorBeatrice Boussand
Life of this patent
Estimating the term…
Abstract
A stable composition (CS) including at least x wt.-% 2,3,3,3-tetrafluoropropene (99.8 ÿ x<100), at most y wt.-% unsaturated compound(s) (Ia) (0<y ÿ 0.2) selected from among 3,3,3-trifluoropropene (HFO-1243zf) and the positional isomers of 2,3,3,3-tetrafluoropropene, such as 1,3,3,3-tetrafluoropropene (isomers Z and E) and 1,1,2,3-tetrafluoropropene, and, optionally, at most 500 ppm of 3,3,3-trifluoropropyne and/or at most 200 ppm 1,1,1,2,3-pentafluoropropene (HFO-1225ye).
Claims26
A composition comprising a refrigerant comprising from 99.8 to 99.98 wt.% of 2,3,3,3-tetrafluoropropene, from 0.02 to 0.2 wt. % of 3,3,3-trifluoropropene (HFO 1243zf) and at least one positional isomer of 2,3,3,3-tetrafluoropropene selected from the group consisting of 1,3,3,3-tetrafluoropropene (Z and E isomers) and 1,1,2,3-tetrafluoropropene, and optionally at most 500 ppm of 3,3,3-trifluoropropyne and/or at most 200 ppm of 1,1,1,2,3-pentafluoropropene (HFO-1225ye).
A composition comprising a refrigerant comprising from 99.8 to 99.98 wt. % of 2,3,3,3-tetrafluoropropene and from 0.02 to 0.2 wt. % of 3,3,3-trifluoropropene (HFO 1243zf) and at least one positional isomer of 2,3,3,3-tetrafluoropropene.
Dependencies are inferred from the claim text.