Cushman, Darby & Cushman
Tetrafluoroethane isomerization
 A method for the preparation of 1,1,1,2-tetrafluoroethane whereby 1,1,2,2-tetrafluoroethane is contacted with the fluorination catalyst at elevated temperature to effect isomerization. 
Imperial Chemical Industries PLC
C
C07C
inventional
Geoffrey J. Helen M.
Moore Massey