SYSTEMS AND METHODS OF POLYMER PRODUCTION Russian patent published in 2014 - IPC C08F10/00 C08F10/02 C08F2/34 C08F4/24 

FIELD: chemistry.

SUBSTANCE: invention relates to systems and methods, intended for the regulation of properties of polymers, obtained in gas-phase and liquid-phase processes. The method of a polymer obtaining includes the introduction of a chrome-based catalyst into a gas-phase reactor system, introduction of hydrogen into the reactor system, contact of a gaseous monomer with the catalyst in the reactor system with obtaining the polymer. The polymer is discharged from the reactor system, with the discharged polymer having the first index of fluidity. The discharged polymer is processed, with the processing including granulation of the discharged polymer. The granulated polymer has the second index of fluidity. A change of the fluidity index is determined. The change of the fluidity index represents the difference between the second and the first fluidity indices. The quantity of hydrogen, introduced into the reactor system, is regulated to control the value of the fluidity index change. The method of obtaining the polymer and the polymerisation reactor system are also described.

EFFECT: improvement of the process regulation, reduction of the poor-quality polymer formation, improvement of the product properties.

15 cl, 5 dwg, 1 tbl, 5 ex