| abstract |
The invention relates to the preparation of pentafluoroethane (F125) by catalytic hydrogenation in the vapor phase of chloropentafluoroethane (F115).n n n The use of a palladium-based catalyst deposited on an alumina, fluorinated alumina or aluminum fluoride support makes it possible to obtain excellent selectivities for F125 and to avoid the formation of 1,1,1- trifluoroethane (F143a). |