method for selective hydrogenolyse of perhalogenethanderivaten.

摘要

Manufacture of chlorofluoroethanes of formula CF3-CHFxCl2-x, where x is equal to 0 or 1, by catalytic hydrogenation of a perhaloethane of formula CF3-CFxCl3-x. …??Use of a catalyst based on ruthenium deposited on a support enables the selectivity to be improved.