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:
Feb. 13, 2001
Filed:
Jun. 16, 1999
Applicant:
Inventors:
Letanzio Bragante, Padua, IT;
Paolo Cuzzato, Treviso, IT;
Assignee:
Ausimont S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/708 ;
U.S. Cl.
CPC ...
C07C 1/708 ;
Abstract
Perfluoropropene (PFP) hydrofluorination process in gaseous phase to obtain CF,—CHF—CF,(A-227ea), characterized in that as catalyst fluorinated alumina containing at least 90% by weight of AlF,, is used, the HF/PFP molar ratios range from about 4:1 to 20:1, the hydrofluorination process temperature being in the range 320°-420° C.