The azeotropic or near azeotropic composition, process for the separation of and - HFC - 1234ze of HFC - 245fa, process for the separation of E - hfc1234ze a mixture, process for purification and the production of E - hfc1234ze

摘要

The azeotropic or near azeotropic composition, process for the separation of sym - HFCS - 1234ze of HFC - 245fa, process for the separation of sym - hfci234ze a mixture, process for purification and the production of sym - hfci234ze. The present invention relates to compositions that comprise the azeotrope or azeotrope almost sym - 1,3313 - tetrafluorpropeno and hydrogen fluoride.These compositions are useful in the azeotrope or azeotrope processes for the production of sym - 1,3,3,3 - tetrafluorpropeno from mixtures of sym - 1,3,3,3 - tetrafluorpropeno with 1,1,1-trichloroethane, 3,3 - pentafu00eduorpropeno and / or with hydrogen fluoride.