US 2023/0364574 A1Published application

Vessel system for pre activating a solid catalyst and method thereof

AssigneeBasell Polyolefine GmbH

InventorsTiziana Caputo, Pietro Baita, Maria Di Diego, Lorella Marturano, Antonio Mazzucco, Gabriele Mei, Giulia Mei, Roberta Pica

Life of this patent

Estimating the term…

patentgrep

Loading patent…

Abstract

An apparatus for polymerizing olefins including a polymerization reactor and a vessel system for pre-activating a solid catalyst component, wherein the vessel system is arranged upstream of the polymerization reactor. The vessel system includes a contacting vessel which includes a main portion, a base portion, a head portion, an inlet, an outlet, and a stirrer positioned within the contacting vessel, wherein the ratio (H/D) of the height (H) of the main portion to the diameter (D) of the main portion is 1.8 or greater. The stirrer is located at a position between the inlet and the outlet.

Claims20

Dependent claims

An apparatus for polymerizing olefins comprising:

a polymerization reactor and a vessel system for pre-activating a solid catalyst component, wherein the vessel system is arranged upstream of the polymerization reactor with respect to the flow of the solid catalyst component and comprises
(a) a contacting vessel comprising
(a.i) a main portion, wherein the main portion is a vertically arranged cylinder;
(a.ii) a base portion;
(a.iii) a head portion;
(a.iv) an inlet, connecting the space outside the contacting vessel with the inside of the contacting vessel;
and
(a.v) an outlet, connecting the inside of the contacting vessel with the space outside the contacting vessel;
wherein the ratio (H/D) of the height (H) of the main portion to the diameter (D) of the main portion, calculated by dividing the height (H) by the diameter (D), is 1.8 or greater;
and
a stirrer positioned within the contacting vessel,
wherein the stirrer is located at a position in the contacting vessel between the inlet and the outlet.

9 more elements

A process for preparing a pre-activated solid catalyst component for use in the polymerization of one or more 1-olefins, employs a vessel system comprising

(a) a contacting vessel comprising
(a.i) a main portion, wherein the main portion is a vertically arranged cylinder;
(a.ii) a base portion;
(a.iii) a head portion;
(a.iv) an inlet, connecting the space outside the contacting vessel with the inside of the contacting vessel;
and
(a.v) an outlet, connecting the inside of the contacting vessel with the space outside the contacting vessel;
wherein the ratio (H/D) of the height (H) of the main portion to the diameter (D) of the main portion, calculated by dividing the height (H) by the diameter (D), is 1.8 or greater;
and
(b) a stirrer positioned within the contacting vessel,
wherein the stirrer is located at a position in the contacting vessel between the inlet and the outlet,
and comprises the steps of:
(i) forming a mixture continuously feeding into the contacting vessel through the inlet
(i.i) a non-activated and/or partially activated solid catalyst component,
(i.ii) an activating compound comprising an organometallic compound of an element of Group 1, 2, 12, 13, or 14 of the Periodic Table of Elements,
(i.iii) a diluent,
and optionally
(i.iv) an external electron donor compound, or
(i.v) an activity enhancer compound selected from the group consisting of halogenated alkanols, haloalkanes, halocycloalkanes, and combinations thereof;
(ii) passing the mixture through the contacting vessel in the vertical direction to the outlet;
(iii) continuously removing the mixture containing the pre-activated solid catalyst component, through the outlet.

18 more elements

Dependencies are inferred from the claim text.