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:
Sep. 15, 2026
Filed:
Feb. 13, 2024
The Chemours Company Fc, Llc, Wilmington, DE (US);
Sheng Peng, Hockessin, DE (US);
Mario Joseph Nappa, Leesburg, FL (US);
THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US);
Abstract
A method of producing afluoropropanefluoropropeneof formula CFCH═CHF, comprising contacting astarting feedmixture of 1,1,1,3,3-pentafluoropropane and Z-1,3,3,3-tetrafluoropropene in the gas phase with a catalyst comprising at least one catalyst selected from the group consisting of fluorinated CrOor Cr/Ni on fluoride alumina, in the presence of an oxygen containing gas, to form a mixture comprisingZ-1,3,3,3-tetrafluoropropaneZ-1,3,3,3-tetrafluoropropene, E-1,3,3,3,-tetrafluoropropene, hydrogen fluoride, and optionally unreacted 1,1,1,3,3-pentafluoropropane, separating the E-1,3,3,3-tetrafluoropropene from the Z-isomer and any unreacted 1,1,1,3,3-pentafluoropropane, if present, and recovering said E-1,3,3,3-tetrafluoropropene.