Process for the thermal cleavage of 1,2- dichloroethane

Details Process for the thermal cleavage of 1,2- dichloroethane Process for the thermal cleavage of 1,2- dichloroethane

C - Chemistry, Metallurgy

07

C

260/662.5

C07C 21/06 (2006.01) C07C 17/25 (2006.01)

Patent

CA 1228369

- 1 - Abstract of the disclosure A process for the thermal cleavage of 1,2-di- chloroethane to give vinyl chloride at 300 to 600°C under atmospheric pressure or elevated pressure is des- cribed. Before cleavage of the 1,2-dichloroethane, 0.001 to 5% by weight of trichloroacetyl chloride or a compound which contains 3 carbon atoms, at least 6 chlo- rine atoms, 0 or 1 oxygen atom and, for each carbon atom bonded to the latter, 0 or 1 hydrogen atom, is added to it. Due to the addition of the compound(s) mentioned, the conversion is increased at the same cleavage tem- perature, or the cleavage temperature is reduced at the same conversion, at the same time a reduction in inter- fering byproducts being observed.

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