Patent ID: 8679363
Filing Date: 2014-03-25
Classification: C09K

Abstract:
1. A process for heat transfer using a vapor compression circuit containing a heat-transfer fluid, successively comprising evaporating of the heat-transfer fluid, compressing of the heat-transfer fluid, condensing of the heat fluid at a temperature greater than or equal to 70° C. and reducing the pressure of the heat-transfer fluid, in which the heat-transfer fluid comprises 1,1,1,3,3-pentafluorobutane and 1,1,1,3,3-pentafluoropropane, the proportion by weight of 1,1,1,3,3-pentafluorobutane in the heat-transfer fluid being less than or equal to 20% and in which the proportion by weight of 1,1,1,3,3-pentafluorobutane and 1,1,1,3,3-pentafluoropropane in the heat-transfer fluid is greater than or equal to 97%.