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:
Jul. 25, 2023
Filed:
Jun. 02, 2021
The Chemours Company Fc, Llc, Wilmington, DE (US);
Velliyur Nott Mallikarjuna Rao, Wilmington, DE (US);
Mario Joseph Nappa, Leesburg, FL (US);
Allen Capron Sievert, Elkton, MD (US);
THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US);
Abstract
A process is disclosed for making CFCF═CHF. The process involves reacting CFCClFCClF with Hin a reaction zone in the presence of a catalyst to produce a product mixture comprising CFCF═CHF. The catalyst has a catalytically effective amount of palladium supported on a support selected from the group consisting of alumina, fluorided alumina, aluminum fluoride and mixtures thereof and the mole ratio of Hto CFCClFCClF fed to the reaction zone is between about 1:1 and about 5:1. Also disclosed are azeotropic compositions of CFCClFCClF and HF and azeotropic composition of CFCHFCHF and HF.