Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
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.
Rao V.N. Mallikarjuna
Subramanian Munirpallam A.
E. I. Du Pont de Nemours and Company
Siegel Alan
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