The present invention relates to a continuous process for the preparation of unsaturated acetals by reacting olefinically unsaturated aliphatic compounds with allyl alcohols in a reaction column, where the reactants are only partially reacted in the reaction column, the resulting acetal is concentrated in at least two successive evaporation stages, and the recovered reactants are returned to the reaction column.

A invenção atual relaciona-se a um processo contínuo para a preparação de acetans unsaturated reagindo compostos aliphatic olefinically unsaturated com os álcoois de allyl em uma coluna da reação, onde os reactants sejam reagidos somente parcialmente na coluna da reação, o acetal resultante é concentrada ao menos em dois estágios sucessivos da evaporação, e os reactants recuperados são retornados à coluna da reação.

 
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