公开(公告)号：EP0975567A1

公开(公告)日：2000-02-02

申请号：EP98902051.6

申请日：1998-01-09

申请人： ELF ATOCHEM S.A.

发明人： HUB, Serge ,  GUILLET, Dominique

IPC分类号： C07C17/358 ,  C07C19/08

CPC分类号： C07C17/358 ,  C07C19/08

摘要： In order to isomerize a hydrofluorocarbon with a certain thermodynamic stability (HFC 1) into hydrofluorocarbon with greater thermodynamic stability (HFC 2), the hydrofluorocarbon HFC1 is subjected to a thermal treatment in the presence of hydrogen at a temperature higher than 500 °C. This method which does not require the use of a catalyst is applicable in particular to the isomerization of 1,1,1,2-tetrafluoroethane into 1,1,1,2-tetrafluoroethane.