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:
Jun. 07, 2016
Filed:
Oct. 11, 2012
Honeywell International Inc., Morristown, NJ (US);
Selma Bektesevic, Williamsville, NY (US);
Daniel C. Merkel, West Seneca, NY (US);
Mario Joseph Nappa, Newark, DE (US);
Xuehui Sun, Swedesboro, NJ (US);
Hsueh Sung Tung, Getzville, NY (US);
Haiyou Wang, Amherst, NY (US);
HONEYWELL INTERNATIONAL INC., Morristown, NJ (US);
Abstract
The present invention relates, in part, to the discovery that the presence of impurities in 1,1,2,3-tetrachloropropene (1230xa) results in catalyst instability during the fluorination of 1230xa to 2-chloro-3,3,3-trifluoropropene. By substantially removing the impurities, it is shown that the catalyst life is extended and results in improved operation efficiency of the fluorination reaction. Such steps similarly result in an overall improvement in the production of certain hydrofluoroolefins, particularly 2,3,3,3-tetrafluoropropene (1234yf).