High-pressure polymerization process of ethylenically unsaturated monomers carred out in a polymerization reactor installed within a protective enclosure

US10472428B2 · kind B2 · utility

Assignee

• Basell Polyolefine GmbH · DE

Inventors

• Andrei Gonioukh · Liblar, DE
• Thomas Herrmann · Cologne, DE
• Dieter Littmann · Heßheim, DE
• Andre-Armand Finette · Cologne, DE
• Siegfried Mischok · Zeven, DE

Key dates

• Filing date: May 9, 2017
• Grant date: Nov 12, 2019
• Expiry date: May 9, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2400/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for polymerizing or copolymerizing ethylenically unsaturated monomers at pressures in the range of from 110 MPa to 500 MPa in a production line comprising a continuously operated polymerization reactor which is installed within a protective enclosure, wherein the production line is monitored with respect to an occurrence of a leakage of monomers or of reaction mixture and a water based deluge system, which provides droplets of a diameter in a range from 25 μm to 20 mm to the enclosed area, is automatically started with a minimum flow rate of 10 L/min per m2 of enclosed area when a leakage of monomers or of reaction mixture is detected.