Method for preparing a hydrofluoroalkane and catalyst
OwnerVincent Wilmet, Georges Lejeuneinventors
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Abstract
Process for the preperation of a hydrodhlorofluoroalkane according to which a halogenated precursor of the hydrochlorofluoroalkane is reated with hydrogen fluoride in the presence of a catalyst comprising chromiun (Cr) and another metal.
Claims12
Process for the preparation of a hydrochlorofluorolkaue according to which a halogenated precursor of the hydrochlorofluoroalkane is reached with hydrogen fluoride in the presece of a bulk catalyst comprising chromium (Cr) and another metal (M selected from the group consisting of barium, bismuth, calcium, cerium and zirconium, characterised by an M/Cr atomic ratio at least 0.2.
Bulk catalyst comprising chromium (Cr) and another metal (M) selected from the group consisting of barium, bismuth, calciums cerium and zircum in an M/Cr atomic ratio of at least 0.2.
Mixed oxide comprising chromium (Cr) and another metal M selected from the group consisting of barium, bismuth, calcium, cerium and zirconium in an M/Cr atomic ratio of at least 0.2.
Dependencies are inferred from the claim text.