1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone...

Details 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone... 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone...

F - Mech Eng,Light,Heat,Weapons

25

D

F25D 1/00 (2006.01)

Patent

CA 2564170

Disclosed herein are refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3-pentanone and at least one hydrocarbon. These compositions are useful in refrigeration and air conditioning systems that employ a centrifugal compressor. Also disclosed herein are azeotropic or near azeotropic refrigerant and heat transfer fluid compositions comprising 1,1,1,2,2,4,5,5,5-nonafluoro-4-(trifluoromethyl)-3- pentanone and at least one hydrocarbon.

Il s~agit de compositions fluides réfrigérantes et de transfert de chaleur comprenant du 1,1,1,2,2,4,5,5,5-nonfluoro-4-(trifluorométhyl)-3-pentanone ainsi qu~au moins un hydrocarbure. Ces compositions sont utiles pour les systèmes de réfrigération et de climatisation employés par un compresseur centrifuge. Il est également question ici de compositions fluides réfrigérantes et de transfert de chaleur azéotropiques ou quasi-azéotropiques comprenant du 1,1,1,2,2,4,5,5,5-nonfluoro-4-(trifluorométhyl)-3-pentanone ainsi qu~au moins un hydrocarbure.

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