Azeotrope-like compositions of tetrafluoropropene and alcohols
View Patent ↗A composition including an effective amount of trans-1,3,3,3-tetrafluoropropene component combined with an effective amount of an alcohol selected from the group of methanol, ethanol, propanol, isopropanol, tert-butanol, isobutanol, 2-ethyl hexanol and any combination thereof, where the composition has azeotropic properties.
1. An azeotrope-like composition, comprising: trans-1,3,3,3-tetrafluoropropene and ethanol, wherein said trans-1,3,3,3-tetrafluoropropene and ethanol are present in an amount effective to form an azeotrope-like composition, and wherein the composition has a boiling point from about −20° C. to about −19° C. at a pressure of about 14.3 psia.
2. An aerosol propellant comprising the composition of claim 1 .
3. A process of forming an azeotrope-like composition, comprising: combining trans-1,3,3,3-tetrafluoropropene with ethanol, wherein said trans-1,3,3,3-tetrafluoropropene and ethanol are present in an amount effective to form an azeotrope-like composition, and wherein the composition has a boiling point from about −20° C. to about −19° C. at a pressure of about 14.3 psia.
4. The process of claim 3 , wherein said trans-1,3,3,3-tetrafluoropropene and said ethanol are combined using a method selected from the group consisting of mixing, blending, contacting by hand, contacting by machine, batch reaction, continuous reaction, and any combination thereof.
5. The composition of claim 1 wherein said composition comprises from about 83 to about 98 weight percent of said trans-1,3,3,3-tetrafluoropropene.
6. The composition of claim 5 , wherein said composition comprises from about 83.4 to about 98.8 of said trans-1,3,3,3-tetrafluoropropene.
7. The composition of claim 1 , wherein said composition comprises from about 1 to about 16 weight percent ethanol.
8. The composition of claim 7 , wherein said composition comprises from about 1.2 to about 16.6 weight percent ethanol.
9. The process of claim 3 , wherein said composition comprises from about 83 to about 98 weight percent of said trans-1,3,3,3-tetrafluoropropene.
10. The process of claim 3 , wherein said composition comprises from about 83.4 to about 98.8 of said trans-1,3,3,3-tetrafluoropropene.
11. The process of claim 3 , wherein said composition comprises from about 1 to about 16 weight percent ethanol.
12. The process of claim 3 , wherein said composition comprises from about 1.2 to about 16.6 weight percent ethanol.