Catalytic manufacture of vinyl fluoride

Details Catalytic manufacture of vinyl fluoride Catalytic manufacture of vinyl fluoride

1997-11-04

1999-03-09

Siegel, Alan

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

Organic compounds

Halogen containing

570158, C01C 1725

Patent

active

058803157

ABSTRACT:
A process for the manufacture of vinyl fluoride (i.e., CH.sub.2 .dbd.CHF, VF or 1141) from 1,1-difluoroethane (i.e., CH.sub.3 CHF.sub.2, F152a or HFC-152a) is disclosed which involves contacting the 1,1-difluoroethane at an elevated temperature (200.degree. C.-400.degree. C.) with a multiphase catalyst composition consisting essentially of (a) fluorides of at least one divalent metal selected from magnesium and zinc, and (b) fluorides of trivalent aluminum, in which phases of the divalent fluorides are homogeneously dispersed with phases of the trivalent fluorides.

REFERENCES:
patent: 2599631 (1952-06-01), Harmon
patent: 3505416 (1970-04-01), Davis et al.
patent: 3505418 (1970-04-01), Davis et al.
patent: 5559069 (1996-09-01), Rao et al.

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