FIELD: chemistry.
SUBSTANCE: method of obtaining 1,3-propandiol includes preparation of 3-hydroxypropanal water solution; removal from solution catalyst, probably used during said preparation; adding to solution hydroxide, selected from group, consisting of ammonium hydroxide, alkali metal hydroxides, alkali earth metal hydroxides, except sodium hydroxide, for neutralization of any contained in it acid in such way that pH constitutes at least 5; hydrogenating neutralised water solution in order to obtain mixture of raw 1,3-propandiol, which is subjected to distillation, obtaining 1,3-propandiol, water and reaction-able heavy components.
EFFECT: reduction of viscosity of reaction-able heavy components.
6 cl, 5 ex
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