TaF.sub.5 and NbF.sub.5 as fluorination catalysts

Details TaF.sub.5 and NbF.sub.5 as fluorination catalysts TaF.sub.5 and NbF.sub.5 as fluorination catalysts

1977-08-15

1981-03-24

Gantz, Delbert E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570170, C07C 1708

Patent

active

042582253

ABSTRACT:
A halogenated alkene is reacted with HF in the presence of TaF.sub.5 or NbF.sub.5 to produce a fluorinated alkane. Exemplary is the reaction of tetrachloroethene with HF in the presence of TaF.sub.5 to produce 1,2,2-trichloro-1,1-difluoroethane and 1,1,2,2-tetrachloro-1-fluoroethane.

REFERENCES:
patent: 2005710 (1935-06-01), Daudt et al.
patent: 2724004 (1955-11-01), Frederick
patent: 3003003 (1961-10-01), McGinty
patent: 3862995 (1975-01-01), Martens et al.

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