Process for preparing 1,1-dichloro-1-fluoroethane

Details Process for preparing 1,1-dichloro-1-fluoroethane Process for preparing 1,1-dichloro-1-fluoroethane

1991-07-31

1992-04-14

Siegel, Alan

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

Organic compounds

Halogen containing

570168, 570177, C07C 1700, C07C 1738

Patent

active

051050331

ABSTRACT:
A manufacturing process is disclosed for preparing 1,1-dichloro-1-fluorethane by the addition of hydrogen fluoride to 1,1-dichloroethylene in the presence of a hydrofluorination catalyst providing 1,1-dichloro-1-fluoroethane in high yields and reduced 1,1-dichloroethylene content.
Additionally, a process is disclosed for reducing the 1,1-dichloroethylene content of a mixture of 1,1-dichloroethylene and 1,1-dichloro-1-fluoroethane.

REFERENCES:
patent: 3755477 (1973-08-01), Firth et al.
patent: 3836479 (1974-09-01), Pauckeh et al.
patent: 4258225 (1981-03-01), Feiring
Journal of Flourine Chemistry, vol. 14 (1979), pp. 7-19.

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