COMPOSITIONS CONTAINING 1,2,3,3,3-PENTAFLUOROPROPENE WITH Z-AND E-ISOMER RATIO OPTIMISED FOR COOLING EFFICIENCY Russian patent published in 2012 - IPC C09K5/04 C09K5/00 

FIELD: chemistry.

SUBSTANCE: invention relates to air-conditioning and refrigeration industry. In particular, the invention relates to a coolant composition containing an azeotropic or near-azeotropic combination consisting of about 0.1-99.9 wt % Z-1,2,3,3,3-pentafluoropropene and about 99.9-0.1 E-1,2,3,3,3-pentafluoropropene. Disclosed also is a method of increasing the cooling efficiency of 1,2,3,3,3-pentafluoropropene by increasing the amount of the Z-isomer relative the amount of the E-isomer. The composition is used to cool and heat bodies which need cooling and heating. The composition is also used to produce foam, produce aerosol products, to extinguish and suppress a flame and preventing burning or explosion. The invention also relates to a composition containing said azeotropic or near-azeotropic combination and at least one compound selected from a group consisting of fluoroolefins, hydrofluorocarbons, hydrocarbons, dimethyl ether, CF₃I, carbon dioxide (CO₂) and ammonia.

EFFECT: compositions have high environmental friendliness and have refrigerating capacity and energy efficiency comparable to that of currently used materials.

20 cl, 3 tbl, 3 ex