EFFERVESCENT NOZZLE FOR CATALYST INJECTION Russian patent published in 2012 - IPC C08F2/01 C08F2/34 C08F10/00 

FIELD: technologies.

SUBSTANCE: nozzle for catalyst injection is provided. The nozzle nozzle for catalyst injection for olefin polymerization includes a first conduit including a body, a tapered section, and an injection tip. The nozzle also includes a second conduit having an inner surface and an outer surface. The first conduit is disposed about the second conduit defining a first annulus there between. The second conduit comprises a first line of axially spaced orifices and a second line of axially spaced orifices, wherein each line is helically disposed about the second conduit such that corresponding axial orifices in the first and second lines are radially spaced. The nozzle further includes a support member at least partially disposed about the outer surface of the first conduit defining a second annulus there between. The support member has a converging outer surface at a first end thereof. The invention comprises also a method for uniform and reproducible method for catalyst injection into a gas phase polyolefine polymerization reactor that provides for polymer dimensions and particle part control.

EFFECT: effervescent nozzle allows for the uniform and reproducible injection of the catalyst into a gas phase polyolefine polymerization reactor to promote uniform, consistent production of polymer product.

26 cl, 6 dwg