Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Robert C. Johnson0
Haiyou Wang0
Hsuehsung Tung0
Daniel C. Merkel0
Date of Patent
November 9, 2010
0Patent Application Number
125634580
Date Filed
September 21, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention provides an economic process for the manufacture of 1,3,3,3-tetrafluoropropene (HFO-1234ze) by a two stage process. A vapor phase hydrofluorination of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) into 1-chloro-1,3,3,3-tetrafluoropropane (HCFC-244fa) and/or 1,1,1,3,3-pentafluoropropane (HFC-245fa) is conducted, followed by the thermal dehydrochlorination of HCFC-244fa and dehydro fluorination of HFC-245fa into HFO-1234ze in the presence of a catalyst which comprises one or more of alkali metal halides, alkaline earth metal halides, halogenated metal oxides, zero oxidation state metals, zinc halides, palladium halides, and activated carbon.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
