Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1990-01-16
1991-06-25
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570166, C07C 1704, C07C 1720, C07C 1902
Patent
active
050269305
ABSTRACT:
An improved gas-phase process for the manufacture of 1,1-difluoro-1,2-dichloroethane and/or 1-fluoro-1,1,2-trichloroethane by contacting a suitable trihaloethylene and/or a tetrahaloethane with hydrogen fluoride in the presence of a metal in combination with a high fluorine content aluminum-containing compound, the reaction being preferably conducted under controlled conditions whereby the production of 1,1,1-trifluorochloroethane is minimized.
REFERENCES:
patent: 3258500 (1966-06-01), Swamer et al.
patent: 3755477 (1973-08-01), Firth et al.
patent: 4766259 (1988-09-01), Manzer et al.
Manzer Leo E.
Rao V. N. Mallikarjuna
E. I. Du Pont de Nemours and Company
Evans J. E.
Shipley James E.
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