Containing 1,1-dichloroethylene and/or dichloroacetylene by treating with chlorine and/or hydrogen chloride in presence of antimony pentachloride or iron trichloride catalyst, distilling

German Democratic Republic Patent

APP PUB NO DD-297394-A5
SERIAL NO

34370990

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Abstract

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Process for the purification of 1,1-dichloro-1-fluoroethane. To remove the unsaturated impurities such as 1,1-dichloroethylene and dichloroacetylene, the crude 1,1-dichloro-1-fluoroethane is subjected to the action of chlorine and/or of a hydracid, this treatment being performed in the presence of a Lewis acid or, only in the case of chlorine, by photochemical catalysis.

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Patent Owner(s)

Patent OwnerAddress
ATOCHEMFRFRENCH MAPUTO PUTEAUX HAUTS-DE-SEINE

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Inventor(s)

Inventor Name Address
CORREIA YVES RUE FONTAROIA 04160 CHATEAU ARNOUX FRANCE
LESPARRE JEAN VOLONNE
BERGOUGNAN MICHEL PIERRE-BENITE
PERDRIEUX SYLRAIN FR

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