公开(公告)号：US09931608B2

公开(公告)日：2018-04-03

申请号：US15523909

申请日：2015-11-12

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Georg Groos ,  Andre-Armand Finette ,  Michael Deuerling ,  Sven Wolfram ,  Juergen Mohrbutter ,  Danir Khayrullin ,  Claudio Fibla ,  Christoph Wolf

IPC: C08G63/02 ,  B01J4/00 ,  C08F2/01 ,  C08F2/00

CPC classification number: B01J4/002 ,  B01J2219/185 ,  B01J2219/1943 ,  B01J2219/1946 ,  C08F2/004 ,  C08F2/01 ,  C08F6/001 ,  C08J11/02 ,  Y02P20/582

Abstract: A process for separating polymeric and gaseous components of a polymer-monomer mixture at a pressure of from 0.12 MPa to 0.6 MPa and a temperature of from 120° C. to 300° C. in a separation vessel is provided. The separation vessel has a vertically arranged cylindrical shape with a ratio of length to diameter L/D of from 0.6 to 10 and an inlet pipe capable of introducing the polymer-monomer mixture into the separation vessel which the inlet pipe extends vertically from the top of the separation vessel into the separation vessel. Further a process for preparing ethylene homopolymers or copolymers from ethylenically unsaturated monomers in the presence of free-radical polymerization initiators at temperatures from 100° C. to 350° C. and pressures in the range of from 110 MPa to 500 MPa comprising such a process for separating a polymer-monomer mixture is provided.

公开(公告)号：US09908954B2

公开(公告)日：2018-03-06

申请号：US15674176

申请日：2017-08-10

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Jürgen Peter Mohrbutter ,  Giulia Mei ,  Andre-Armand Finette ,  Sven Georg Wolfram ,  Michael Deuerling ,  Danir Khayrullin ,  Georg Groos ,  Christoph Wolf

IPC: C08F110/02 ,  C08J5/18 ,  B01J19/24 ,  C08F2/34 ,  C08F2/38

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/01 ,  C08F2/34 ,  C08J5/18 ,  C08J2323/06 ,  C08F2/00 ,  C08F2500/12 ,  C08F2500/26

Abstract: The present technology relates to a process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators, wherein the polymerization is carried out in a continuously operated tubular reactor at temperatures from 100° C. to 350° C. and pressures from 180 MPa to 340 MPa, with a specific reactor surface area Asp of 2 m2/(t/h) to 5.5 m2/(t/h), and the tubular reactor has a specific ratio RDsp of 0.0050 MPa−1 to 0.0069 MPa−1 and an inner surface which has a surface roughness Ra of 2 μm or less.

公开(公告)号：US09637569B2

公开(公告)日：2017-05-02

申请号：US15106150

申请日：2014-12-15

Applicant: Basell Polyolefine GmbH

Inventor： Erich Neumann ,  Danir Khayrullin ,  Claudio Fibla

IPC: C08F2/00 ,  C08F4/00 ,  C08F210/00 ,  B01J10/00 ,  B01J19/18 ,  C08F6/10 ,  B01J3/00 ,  B01D19/00 ,  B01J19/24 ,  C08F10/02

CPC classification number: C08F6/10 ,  B01D19/0036 ,  B01D19/0063 ,  B01J3/002 ,  B01J19/2415 ,  B01J2219/185 ,  B01J2219/1943 ,  B01J2219/1946 ,  C08F10/02 ,  Y02P20/582

Abstract: The present disclosure relates to a vessel for separating, at a pressure of from 10 MPa to 50 MPa, a composition comprising liquid components and gaseous components into a liquid fraction and a gaseous fraction, wherein the separation vessel has a vertically arranged cylindrical shape, has at its top a manhole, which is surrounded by a thickened by a part of the separation vessel wall; and bears at least one bursting disc which is held by a bursting disc holder which is installed pressure-tight within a boring in the thickened part of the separation vessel wall.