| abstract |
Procedure for obtaining a pure aliphatic monoacetal dialdehyde, which is formed by at least 98% by weight of the recoverable product, consisting of the aliphatic monoacetal dialdehyde, by a single stage reaction of the corresponding aliphatic dialdehyde or a precursor of the dialdehyde corresponding aliphatic with one or more polyvalent monovalent aliphatic alcohols, the water being distilled off, obtaining a reaction mixture, which is separated by distillation, characterized in that distillation separation is carried out continuously, in a column with separating wall, obtaining pure aliphatic monoacetal dialdehyde as lateral discharge of the column with separating wall or in two distillation columns, obtaining in the first distillation column aliphatic monoacetal dialdehyde as a lateral discharge, the crude aliphatic monoacetal dialdehyde is fed to the second column of distilled ion and is obtained from the second pure aliphatic monoacetal dialdehyde distillation column as a side discharge. |