Composition containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene

Patent metadata

Field	Value
Publication number	US-9683155-B2
Application number	US-201314651925-A
Country	US
Kind code	B2
Filing date	Dec 6, 2013
Priority date	Dec 26, 2012
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

Compositions containing 2,3,3,3-tetrafluoropropene and 1,2-difluoroethylene, that can be used in multiple fields of application. The composition can include from 45 to 90 mol % of 2,3,3,3-tetrafluoropropene and from 55 to 10 mol % of, 1,2-difluoroethylene. The composition can include from 55 to 80 mol % of 2,3,3,3-tetrafluoropropene and from 45 to 20 mol % of 1,2-difluoroethylene. The composition can include from 62 to 69 mol % of 2,3,3,3-tetrafluoropropene and from 38 to 31 mol % of 1,2-difluoroethylene at a temperature of between −30° C. and 56° C. and a pressure of between 1 and 15 bar.

First claim

The invention claimed is:

1. An azeotropic composition comprising about 62 mol % of 2,3,3,3-tetrafluoropropene and about 38 mol % of 1,2-difluoroethylene, wherein the composition is azeotropic at a temperature of −30° C. and a pressure of 1 bar.

2. A heat transfer fluid comprising the azeotropic composition of claim 1 and at least one additive selected from the group consisting of lubricants, nanoparticles, stabilizers, surfactants, tracers, fluorescent agents, odorous agents and solubilizing agents.

3. An azeotropic composition comprising about 65 mol % of 2,3,3,3-tetrafluoropropene and about 35 mol % of 1,2-difluoroethylene, wherein the composition is azeotropic at a temperature of −2° C. and a pressure of 3 bar.

4. A heat transfer fluid comprising the azeotropic composition of claim 3 and at least one additive selected from the group consisting of lubricants, nanoparticles, stabilizers, surfactants, tracers, fluorescent agents, odorous agents and solubilizing agents.

5. An azeotropic composition comprising about 67 mol % of 2,3,3,3-tetrafluoropropene and about 33 mol % of 1,2-difluoroethylene, wherein the composition is azeotropic at a temperature of 39° C. and a pressure of 10 bar.

6. A heat transfer fluid comprising the azeotropic composition of claim 5 and at least one additive selected from the group consisting of lubricants, nanoparticles, stabilizers, surfactants, tracers, fluorescent agents, odorous agents and solubilizing agents.

7. An azeotropic composition comprising about 69 mol % of 2,3,3,3-tetrafluoropropene and about 31 mol % of 1,2-difluoroethylene, wherein the composition is azeotropic at a temperature of 56° C. and a pressure of 15 bar.

8. A heat transfer fluid comprising the azeotropic composition of claim 7 and at least one additive selected from the group consisting of lubricants, nanoparticles, stabilizers, surfactants, tracers, fluorescent agents, odorous agents and solubilizing agents.

Assignees

• Arkema France

Inventors

• Deur-Bert Dominique
• Wendlinger Laurent

Classifications

• C09K2205/32

  The mixture being azeotropic · CPC title

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• C09K2205/22

  All components of a mixture being fluoro compounds · CPC title

• H01B3/56

  gases · CPC title

• C09K3/30

  for aerosols (aerosol containers B65D83/14) · CPC title