1,1,1,3,3-pentafluorobutane refrigerant or heat transfer...

Details 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer... 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer...

C - Chemistry, Metallurgy

09

K

C09K 5/04 (2006.01)

Patent

CA 2553449

Disclosed herein are 1,1,1,3,3-pentafluorobutane refrigerant or heat transfer fluid compositions further comprising hydrofluorocarbon, , N-(difluoromethyl)- N,N-dimethylamine, 1,1,1,2,2-pentafluoro-2-[(pentafluoroethyl)thio]ethane or mixtures thereof, which are useful in refrigerain or air conditioning apparatus or as heat transfer fluids. The compositions of the present invention are also useful in centrifugal compressor apparatus that employ two- stage compressors or single slab.single pass heat exchangers.

L'invention concerne des compositions de 1,1,1,3,3-pentafluorobutane frigorigènes ou de transfert thermique comprenant en outre des hydrofluorocarbones, de la N-(difluorométhyl)-N,N-dimethylamine, du 1,1,1,2,2-pentafluoro-2-[(pentafluoroéthyl)thio]éthane ou des mélanges de ces derniers, qui sont utilisées dans des appareils de réfrigération ou de conditionnement d'air ou comme liquides de transfert thermique. Les compositions de l'invention sont également utilisées dans des appareils compresseurs centrifuges comprenant des compresseurs à deux étages ou des échangeurs de chaleur à une plaque/un passage.

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