METHOD OF PRODUCTION OF POLYADDUCTS OF ALKYLENE OXIDES AND GAS-AND-LIQUID DISPERSED REACTOR Russian patent published in 2002 - IPC

FIELD: semicontinuous methods of production of polyadducts of alkylene oxides by performing addition reaction of alkylene oxide on macromolecular chain growth initiator which has at least one active atom of hydrogen. SUBSTANCE: method proposes reactor 1 which consists of two cylinders of different diameters; cylinder of larger diameter is located above cylinder of lesser diameter; provision is also made for heat exchanger 2 and bypass mains 13 and 15 through which reaction mixture is pumped from lower part of reactor to its upper part in the course of obtaining end product. Process of obtaining end product may be started at volume of chain growth initiator equal to 1/90 of volume of end product. EFFECT: improved technological process; possibility of obtaining end product at single loading of reactor at high molecular weight and obtaining lesser amount of polyadducts at one and same growth of molecular chain. 18 cl, 1 dwg