Process for the preparation of hydrofluorocarbons
AssigneeHoechst Aktiengesellschaft
InventorRolf-Michael Jansen
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for the preparation of saturated hydrofluorocarbons by hydrogenating at least one (hydro)fluorocarbon of the formula (I) R.sub.f --CH.sub.n Cl.sub.c Br.sub.d I.sub.e (I) in which R.sub.f is C.sub.a F.sub.(2a-b)+1 H.sub.b where a is 1-4 and b is 0-4, n is 0-2 c is 0-3 d is 0-3 e is 0-3 c+d+e is 3-n, catalytically with hydrogen at elevated temperature.
Claims16
A process for the hydrogenating dimerisation of at least one fluorocarbon or hydrofluorocarbon selected from the group consisting of 1-chloro-2,2,2-trifluoroethane, 1,1-dichloro-2,2,2-trifluoroethane, 1,1,1-trichloro-2,2,2-trifluoroethaneand 1,1-dichloro-2,2,3,3,3-pentafluoropropane, which comprises contacting said compound with hydrogen in the presence of at least one catalyst which contains an element from subgroups I to VIII of the Periodic Table, at an elevated temperature from 50.degree. to 500.degree. C.
Dependencies are inferred from the claim text.