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:
Mar. 03, 1987
Filed:
Mar. 19, 1985
Applicant:
Inventors:
Assignee:
Central Glass Company, Limited, Ube, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562605 ;
Abstract
Trifluoroacetic acid is easily formed by hydrolysis of 1,1,1-trichloro-2,2,2-trifluoroethane with water in the presence of a catalyst comprising an inorganic metal compound, preferably a chloride of Mn, Fe, Co, Ni, Cu or Zn. Preferably the hydrolysis reaction is carried out as a vapor phase contact reaction at 200.degree.-400.degree. C., using 5-15 moles of water per mole of trichlorotrifluoroethane.