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:
May. 13, 2008
Filed:
Apr. 29, 2005
Jing Ji MA, West Seneca, NY (US);
Sudip Mukhopadhyay, Williamsville, NY (US);
Haridasan K. Nair, Williamsville, NY (US);
Hsueh S. Tung, Getzville, NY (US);
Michael Van Der Puy, Amherst, NY (US);
Jing Ji Ma, West Seneca, NY (US);
Sudip Mukhopadhyay, Williamsville, NY (US);
Haridasan K. Nair, Williamsville, NY (US);
Hsueh S. Tung, Getzville, NY (US);
Michael Van Der Puy, Amherst, NY (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene which comprises, in one embodiment, reacting a compound of CFXwith a compound of CXH═CHX, wherein X, X, and Xare each independently selected from the group consisting of fluorine, chlorine, bromine and iodine, to produce a reaction product comprising a compound of CFCH═CHX, wherein Xis as described above; and when Xis not fluorine, fluorinating the compound to produce 1,3,3,3-tetrafluoropropene. The process in another embodiment comprises preparing tetrafluoropropene comprising thermally cracking one or more compounds capable of producing a reaction mixture which preferably comprises diflurocarbene radicals and vinylidene fluoride, and converting said reaction mixture into—tetrafluoropropene (1,3,3,3-tetrafluoropropene).