Composition on the basis of hydrochlorofluoroolefin and mineral oil
View Patent ↗The invention relates to the use of a composition that comprises at least one hydrochlorofluoroolefin, at least one mineral oil, and air, with the air being provided in a weight concentration of less than 1%, relative to the mass of the mixture of said at least one hydrochlorofluoroolefin and air, said composition being exposed to a maximum change-of-state temperature greater than or equal to approximately 100° C.
1. A method of conducting heat transfer with a composition comprising at least one hydrochlorofluoroolefin, at least one mineral oil and air, the air being in a weight proportion of less than 1% relative to the weight of the mixture of the at least one hydrochlorofluoroolefin and air, wherein the method comprises subjecting the composition to at least one change of state at a mean temperature greater than or equal to approximately 100° C., and wherein the mineral oil is present in a weight proportion of from 10% to 70% relative to the total weight of the composition.
2. The method as claimed in claim 1 , wherein the composition is subjected to at least one change of state at a mean temperature of approximately 100° C. to approximately 200° C.
3. The method as claimed in claim 1 , wherein the composition does not comprise a stabilizer.
4. The method as claimed in claim 1 , wherein the composition consists essentially of at least one hydrochlorofluoroolefin, at least one mineral oil and air, the air being in a weight proportion of >0% to <1% relative to the weight of the mixture of the at least one hydrochlorofluoroolefin and air.
5. The method as claimed in claim 1 , wherein the weight proportion of air in the composition is from ≥0.05% to <1%, relative to the weight of the mixture of the at least one hydrochlorofluoroolefin and air.
6. The method as claimed in claim 1 , wherein the weight proportion of air in the composition is from >0% to ≤0.6%, relative to the weight of the mixture of the at least one hydrochlorofluoroolefin and air.
7. The method as claimed in claim 1 , wherein the weight proportion of air in the composition is from ≥0.05% to ≤0.4%, relative to the weight of the mixture of the at least one hydrochlorofluoroolefin and air.
8. The method as claimed in claim 1 , wherein the at least one hydrochlorofluoroolefin is chosen from 1-chloro-3,3,3-trifluoropropene, 2-chloro-3,3,3-trifluoropropene, 3,3,3,2-tetrafluorochloro-1-propene, a dichlorotrifluoropropene or a combination thereof.
9. The method as claimed claim 1 , wherein the at least one hydrochlorofluoroolefin is 1-chloro-3,3,3-trifluoropropene.
10. The method as claimed in claim 9 , wherein the 1-chloro-3,3,3-trifluoropropene is in trans form in a weight proportion greater than or equal to 90%, relative to the total weight of 1-chloro-3,3,3-trifluoropropene.
11. The method as claimed in claim 1 , wherein the composition is subjected to at least one change of state at a mean temperature equal to approximately 200° C.
12. The method as claimed in claim 1 , wherein the method is performed in a vapor-compression system or in a machine for producing mechanical or electrical energy.
13. The method as claimed in claim 12 , wherein the vapor-compression system is an air-conditioning system, a refrigeration system, a freezing system, or a heat pump system.
14. The method as claimed in claim 2 , wherein the composition is subjected to at least one change of state at a mean temperature greater than or equal to approximately 120° C.
15. The method as claimed in claim 2 , wherein the composition is subjected to at least one change of state at a mean temperature greater than or equal to approximately 140° C.
16. The method as claimed in claim 2 , wherein the composition is subjected to at least one change of state at a mean temperature greater than or equal to approximately 160° C.
17. The method as claimed in claim 2 , wherein the composition is subjected to at least one change of state at a mean temperature greater than or equal to approximately 180° C.