The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2024
Filed:
Dec. 16, 2019
Basell Polyolefine Gmbh, Wesseling, DE;
Dieter Littmann, Muecke, DE;
Andre-Armand Finette, Cologne, DE;
Christoph Wolf, Pulheim-Dansweiler, DE;
Michael Deuerling, Weilerswist, DE;
Juergen Mohrbutter, Alfter, DE;
Danir Khayrullin, Bruehl, DE;
Giulia Mei, Ferrara, IT;
Erich Neumann, Braunschweig, DE;
Basell Polyolefine GmbH, Wesseling, DE;
Abstract
A process for polymerizing ethylene in a high-pressure polymerization system having a continuously operated polymerization reactor and a reactor blow down system having an emergency valve, a reactor blow down vessel containing an aqueous medium and a reactor blow down dump vessel, wherein the process includes the steps of monitoring the polymerization system for a disturbance, opening the emergency valve when a disturbance occurs to allow the content of the polymerization system to expand into the reactor blow down vessel, contacting the content of the polymerization system in the reactor blow down vessel with the aqueous medium to obtain an aqueous polymer slurry, separating the polymer slurry and gaseous components, and transferring the polymer slurry to the reactor blow down dump vessel.