Tetrafluoropropene compositions and uses thereof

Patent metadata

Field	Value
Publication number	US-9540556-B2
Application number	US-201414499454-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Nov 19, 2008
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

First claim

What is claimed is:

1. A composition comprising HFO-1234yf and HFC-32, with at least about 78.5 weight percent HFO-1234yf and up to about 21.5 weight percent HFC-32.

2. The composition of claim 1 comprising about 78.5 weight percent HFO-1234yf and about 21.5 weight percent HFC-32.

3. The composition of claim 1 further comprising at least one lubricant selected from the group consisting of mineral oils, alkylbenzenes, synthetic paraffins, synthetic naphthenes, poly alpha olefins, polyalkylene glycols, dibasic acid esters, polyesters, neopentyl esters, polyvinyl ethers, silicones, silicate esters, fluorinated compounds, phosphate esters and mixtures thereof.

4. The composition of claim 1 comprising from about 10 to about 21.5 weight percent HFC-32 and about 90 to about 78.5 weight percent HFO-1234yf.

5. The composition of claim 4 comprising:
a) a refrigerant component consisting of about 10 to about 21.5 weight percent HFC-32 and about 90 to about 78.5 weight percent HFO-1234yf; and
b) a non-refrigerant component.

6. The composition of claim 5 , wherein the non-refrigerant component comprises at least one lubricant selected from the group consisting of mineral oils, alkylbenzenes, synthetic paraffins, synthetic naphthenes, poly alpha olefins, polyalkylene glycols, dibasic acid esters, polyesters, neopentyl esters, polyvinyl ethers, silicones, silicate esters, fluorinated compounds, phosphate esters and mixtures thereof.

7. The composition of claim 1 comprising from about 15 to about 21.5 weight percent HFC-32 and about 85 to about 78.5 weight percent HFO-1234yf.

8. The composition of claim 1 comprising from about 20 to about 21.5 weight percent HFC-32 and about 80 to about 78.5 weight percent HFO-1234yf.

9. The composition of claim 1 , consisting essentially of about 78.5 weight percent HFO-1234yf and about 21.5 weight percent HFC-32.

10. The composition of claim 1 comprising:
a) a refrigerant component consisting of about 78.5 weight percent HFO-1234yf and about 21.5 weight percent HFC-32; and
b) a non-refrigerant component.

11. The composition of claim 10 , wherein the non-refrigerant component comprises at least one lubricant selected from the group consisting of mineral oils, alkylbenzenes, synthetic paraffins, synthetic naphthenes, poly alpha olefins, polyalkylene glycols, dibasic acid esters, polyesters, neopentyl esters, polyvinyl ethers, silicones, silicate esters, fluorinated compounds, phosphate esters and mixtures thereof.

12. A process to produce cooling comprising condensing a composition of claim 1 and thereafter evaporating said composition in the vicinity of a body to be cooled.

13. A process to produce heat comprising condensing the composition of claim 1 in the vicinity of a body to be heated and thereafter evaporating said composition.

14. A method for replacing R22 or R404A, in a system that uses, used or was designed to use R22 or R404A, wherein said method comprises providing the composition of claim 1 to said system.

15. The method of claim 14 wherein the refrigerant being replaced is R404A and the composition provided comprises from about 80 to about 78.5 weight percent HFO-1234yf and from about 20 to about 21.5 weight percent HFC-32.

16. A refrigeration, air-conditioning or heat pump apparatus containing the composition of claim 1 .

17. A stationary air conditioning apparatus containing the composition of claim 1 .

18. A stationary refrigeration system containing the composition of claim 1 .

Assignees

• Chemours Co Fc Llc
• Chemours Co Fc Llc

Inventors

• Minor Barbara Haviland
• Leck Thomas Joseph
• Bivens Donald Bernard

Classifications

• C09K3/30

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

• C09K2205/22

  All components of a mixture being fluoro compounds · CPC title

• C09K2205/40

  Replacement mixtures · CPC title

• C10M105/06

  aromatic · CPC title

• C10M2203/065

  used as base material · CPC title