CATALYST SUSPENSION MIXING METHOD AND SYSTEM Russian patent published in 2025 - IPC B01J8/10 B01J19/18 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of preparing a catalyst suspension. Method includes: preparing a first catalyst suspension containing a catalyst in the form of solid particles and a carrier liquid in a catalyst suspension preparation system, where the catalyst in the form of solid particles includes a chromium-containing catalyst, a Ziegler-Natta catalyst or a metallocene catalyst. Catalyst suspension preparation system includes: a mixing tank, a system of rotating impellers connected to the mixing tank, and a motor connected to the rotating impeller system, wherein the rotary impeller system includes a mixer shaft and a first hub connected to the mixer shaft, wherein the first hub and at least part of the mixer shaft are located within the mixing container along the longitudinal axis of the mixing container, and wherein the first hub has at least three blades; feeding a first catalyst slurry from a mixing vessel of a catalyst slurry preparation system into a polymerisation reactor; and bringing one or more olefins into contact with the first catalyst slurry under polymerisation conditions in the polymerisation reactor. Invention also relates to a system.

EFFECT: invention makes it possible to effectively maintain concentration of catalyst in reactors.

20 cl, 16 dwg