METHOD OF PRODUCING POLYETHER ALCOHOLS Russian patent published in 2015 - IPC C08G65/00 C08G65/26 C08G65/28 C08G18/48 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing polyether alcohol. The method is carried out by reacting (a) at least one compound with at least three hydrogen atoms that are reactive with respect to alkylene dioxides with weight-average molecular weight M_n of at most 600 g/mol with (b) alkylene oxides using (c) catalysts. The reaction is carried out in the presence of polyether alcohol (d) with hydroxyl number of 100-800 mg KOH/g and functionality of 1.5-8. The polyether alcohol (d) is used in amount of 1-70 wt % with respect to the sum of compounds (a) and (d), alkylene oxide is fed at an average rate of 45-160 kg/h/cm³ with respect to the reactor volume. Power consumption of the mixer is in the range of 0.15-5 kW/m³.

EFFECT: obtaining polyether alcohols with improved output per unit volume per unit time when using amines as catalysts.

12 cl, 3 ex