1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane refrigerant...

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 5/00 (2006.01)

Patent

CA 2565442

The present invention relates to compositions for use in refrigeration and air- conditioning systems comprising 1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane and at least one chlorocarbon, alcohol, ketone, ether, ester, N- (difluoromethyl)-N,N-dimethylamine, or mixtures thereof. Further, the present invention relates to compositions for use in refrigeration and air- conditioning systems employing a centrifugal compressor comprising 1-ethoxy- 1,1,2,2,3,3,4,4,4-nonafluorobutane and at least one chlorocarbon, alcohol, ketone, ether, ester, N-(difluoromethyl)-N,N-dimethylamine, or mixtures thereof. The compositions of the present invention may be azeotropic or near- azeotropic and are useful in processes for producing cooling or heat or as heat transfer fluids.

L'invention concerne des compositions destinées à être utilisées dans des systèmes de réfrigération et de climatisation comprenant du 1-éthoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane et au moins un chlorocarbone, un alcool, un cétone, un éther, un ester, une N-(difluorométhyl)-N,N-diméthylamine ou des mélanges de ces derniers. L'invention concerne également des compositions destinées à être utilisées dans des systèmes de réfrigération et conditionnement d'air utilisant un compresseur centrifuge comprenant du 1-éthoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane et au moins un chlorocarbone, un alcool, un cétone, un éther, un ester, une N-(difluorométhyl)-N,N-diméthylamine. Les compositions selon l'invention peuvent être azéotropiques ou quasi-azéotropiques et sont utiles dans des procédés de refroidissement ou de chauffage ou en tant que fluides de transfert de chaleur.

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