The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2012
Filed:
Aug. 01, 2011
Yuon Chiu, Denville, NJ (US);
Stephen A. Cottrell, Baton Rouge, LA (US);
Hsueh Sung Tung, Getzville, NY (US);
Haluk Kopkalli, Staten Island, NY (US);
Gustavo Cerri, Parsippany, NJ (US);
Yuon Chiu, Denville, NJ (US);
Stephen A. Cottrell, Baton Rouge, LA (US);
Hsueh Sung Tung, Getzville, NY (US);
Haluk Kopkalli, Staten Island, NY (US);
Gustavo Cerri, Parsippany, NJ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A method for producing 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene using a single set of four unit operations, the unit operations being (1) hydrogenation of a starting material comprising hexafluoropropene and optionally recycled 1,1,1,2,3-pentafluoropropene; (2) separation of the desired intermediate hydrofluoroalkane, such as 1,1,1,2,3,3-hexafluoropropane and/or 1,1,1,2,3-pentafluoropropane; (3) dehydrofluorination of the intermediate hydrofluoroalkane to produce the desired 1,1,1,2-tetrafluoropropene and/or 1,1,1,2,3-pentafluoropropene, followed by another separation to isolate the desired product and, optionally, recycle of the 1,1,1,2,3-pentafluoropropene.