Enichem Elastomeres France S.a.

Michel Baudouin

Jean-Pierre Tassara

Process for preparing chloroprene by dehydrochlorinating 3,4-dichloro-1-butene in the presence of lime and a polyol, such as a glycol selected from (poly)ethylene glycol and (poly)propylene glycol or sugars, with ethylene glycol being preferred.

Process for preparing chloroprene

A process for producing chloroprene by means of the dehydrochlorination of 3,4-dichloro-1-butene is disclosed, which is characterized in that the dehydrochlorination is carried out in the presence of lime and a primary amine having the general formula R--NH.sub.2, in which R is a monofunctional C.sub.1 -C.sub.15 hydrocarbyl radical selected from linear or branched alkyl, alkylaryl, cyclohexyl, alkylcyclohexyl, cyclopentyl, alkylcyclopentyl radicals.

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St Genis les Ollieres, France

Michel Baudouin