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

Patent metadata

Field	Value
Publication number	US-10131829-B2
Application number	US-201715490541-A
Country	US
Kind code	B2
Filing date	Apr 18, 2017
Priority date	Dec 26, 2012
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

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 or quasi-azeotropic composition comprising the compounds:
2,3,3,3-tetrafluoropropene;
hydrogen fluoride; and
1,2-difluoroethylene.

2. The azeotropic or quasi-azeotropic composition as claimed in claim 1 , wherein the composition comprises:
from 30 to 75 mol % of 2,3,3,3-tetrafluoropropene;
from 10 to 55 mol % of HF; and
from 15 to 40 mol % of 1,2-difluoroethylene.

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

4. An azeotropic or quasi-azeotropic composition consisting of the compounds:
2,3,3,3-tetrafluoropropene;
hydrogen fluoride; and
1,2-difluoroethylene.

5. The azeotropic or quasi-azeotropic composition as claimed in claim 4 , wherein the composition consists of:
from 30 to 75 mol % of 2,3,3,3-tetrafluoropropene;
from 10 to 55 mol % of HF; and
from 15 to 40 mol % of 1,2-difluoroethylene.

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

8. A heat transfer fluid comprising the azeotropic or quasi-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.

Assignees

• Arkema France

Inventors

• Deur-Bert Dominique
• Wendlinger Laurent

Classifications

• C09K2205/126

  Unsaturated fluorinated hydrocarbons · CPC title

• C09K2205/22

  All components of a mixture being fluoro compounds · CPC title

• C09K5/045 Primary

  containing only fluorine as halogen · CPC title

• C09K3/1472

  Non-aqueous liquid suspensions · CPC title

• H01B3/56

  gases · CPC title