Compositions comprising 1,2,3,3,3-pentafluoropropene with z-...

Details Compositions comprising 1,2,3,3,3-pentafluoropropene with z-... Compositions comprising 1,2,3,3,3-pentafluoropropene with z-...

C - Chemistry, Metallurgy

09

K

C09K 5/04 (2006.01) A62D 1/00 (2006.01) C08J 9/14 (2006.01) C09K 3/30 (2006.01)

Patent

CA 2671048

Azeotropic or near- azeotropic compositions are disclosed comprising about 0.1 weight percent to about 99.9 weight percent Z-1,2,3,3,3-pentafluoropropene (Z-1225ye) and about 99.9 weight percent to about 0.1 weight percent E-1,2,3,3,3-pentafluoropropene (E-1225ye). Also disclosed is a method for increasing refrigeration capacity for 1,2,3,3,3-pentafluoropropene (HFC-1225ye) said method comprising increasing the amount of Z-isomer (Z-1225ye) relative to the amount of E-isomer (E-1225ye).

La présente invention concerne des compositions azéotropiques ou quasi-azéotropiques qui contiennent de 0.1 % poids environ à 99,9 % poids environ de Z-1,2,3,3,3-pentafluoropropène (Z-1225ye), et de 99,9 % poids environ à 0,1 % poids environ de E-1,2,3,3,3-pentafluoropropène (E-1225ye). L'invention a également trait à un procédé permettant d'augmenter la capacité de réfrigération du 1,2,3,3,3-pentafluoropropène (HFC-1225ye), ledit procédé consistant à augmenter la quantité d'isomère Z (Z-1225ye) par rapport à la quantité d'isomère E (E-1225ye).

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