公开(公告)号：US09758603B2

公开(公告)日：2017-09-12

申请号：US15461064

申请日：2017-03-16

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 ,  C08F2/01 ,  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：US20170022303A1

公开(公告)日：2017-01-26

申请号：US15240084

申请日：2016-08-18

Applicant: Basell Polyolefine GmbH

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

IPC: C08F110/02 ,  B01J19/24

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.

Abstract translation: 本技术涉及在自由基聚合引发剂存在下聚合或共聚烯键式不饱和单体的方法，其中聚合在连续操作的管式反应器中在100℃至350℃的温度下进行，压力 从180MPa到340MPa，比表面积Asp为2m 2 /（t / h）至5.5m 2 /（t / h），并且管式反应器的比值RDsp为0.0050MPa-1至0.0069MPa -1，表面粗糙度Ra为2μm以下的内表面。

公开(公告)号：US10343135B1

公开(公告)日：2019-07-09

申请号：US16144627

申请日：2018-09-27

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Andre-Armand Finette ,  Christoph Wolf ,  Michael Deuerling ,  Juergen Peter Mohrbutter ,  Danir Khayrullin

IPC: C08F210/02 ,  C08F210/16 ,  F16L3/23 ,  B01J19/24 ,  F16L43/00

Abstract: The present disclosure relates to a manufacturing plant for high-pressure polymerization having a layered tubular reactor and a method for an emergency shutdown in said manufacturing plant. The present disclosure also relates to a process for manufacturing LDPE using said layered tubular reactor.

公开(公告)号：US10005862B2

公开(公告)日：2018-06-26

申请号：US14654252

申请日：2013-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Andre-Armand Finette ,  Christoph Wolf ,  Danir Khayrullin ,  Giulia Mei ,  Juergen Mohrbutter ,  Dieter Littmann

IPC: C08F210/02 ,  C08F210/04 ,  C08F210/08 ,  C08F2/00 ,  C07C67/54

CPC classification number: C08F210/02 ,  C08F2/00 ,  C08F218/08

Abstract: Process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising a polymerization reactor and one or more compressors, which compress the monomer mixture fed to the polymerization reactor to the polymerization pressure, wherein the monomer mixture is compressed by a sequence of compression stages in which the compressed gas mixture is cooled after each compression stage and the fraction of the monomer mixture, which is liquid after this cooling, is separated off and returned to the polymerization apparatus in liquid form, and wherein at least a part of the liquid fractions obtained after compressing the monomer mixture in the respective compression stage to a pressure of from 0.2 MPa to 10 MPa is purified before being returned to the polymerization process.

公开(公告)号：US20170183429A1

公开(公告)日：2017-06-29

申请号：US15461064

申请日：2017-03-16

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 ,  B01J19/24 ,  C08J5/18

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：US09637568B2

公开(公告)日：2017-05-02

申请号：US15101372

申请日：2014-12-03

Applicant: Basell Polyolefine GmbH

Inventor： Danir Khayrullin ,  Michael Deuerling ,  Christoph Wolf ,  Erich Neumann ,  Claudio Fibla

IPC: C08F2/00 ,  C08F4/00 ,  C08F210/00 ,  B01J10/00 ,  B01J19/18 ,  C08F6/10 ,  C08F6/00 ,  C08F6/12 ,  G01F23/288 ,  C08F10/02 ,  B01J4/00

CPC classification number: C08F6/10 ,  B01J4/002 ,  C08F6/001 ,  C08F6/12 ,  C08F10/02 ,  G01F23/2885 ,  C08L23/04 ,  C08F2/00

Abstract: The present disclosure generally relates to a process for separating polymeric and gaseous components of a reaction mixture obtained by high-pressure polymerization of ethylenically unsaturated monomers in the presence of free-radical polymerization initiators into a gaseous fraction and a liquid fraction in a separation vessel, wherein the filling level of the liquid fraction in the separation vessel is measured by a radiometric level measurement system comprising at least two radioactive sources and at least three radiation detectors, and the filling level is controlled by a product discharge valve which operates based on data coming from the level measurement system.

公开(公告)号：US20160289356A1

公开(公告)日：2016-10-06

申请号：US14654252

申请日：2013-12-16

Applicant: BASELL POLYOLEFINE GMBH

Inventor： Andre-Armand Finette ,  Christoph Wolf ,  Danir Khayrullin ,  Giulia Mei ,  Juergen Mohrbutter ,  Dieter Littmann

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F2/00 ,  C08F218/08

Abstract: Process for copolymerizing ethylene and esters of vinyl alcohol in the presence of free-radical polymerization initiators at pressures in the range of from 110 MPa to 500 MPa and temperatures in the range of from 100° C. to 350° C. in a continuously operated polymerization apparatus comprising a polymerization reactor and one or more compressors, which compress the monomer mixture fed to the polymerization reactor to the polymerization pressure, wherein the monomer mixture is compressed by a sequence of compression stages in which the compressed gas mixture is cooled after each compression stage and the fraction of the monomer mixture, which is liquid after this cooling, is separated off and returned to the polymerization apparatus in liquid form, and wherein at least a part of the liquid fractions obtained after compressing the monomer mixture in the respective compression stage to a pressure of from 0.2 MPa to 10 MPa is purified before being returned to the polymerization process.

Abstract translation: 在自由基聚合引发剂的存在下，在连续操作的聚合装置中在110MPa至500MPa的范围内和在100℃至350℃的温度范围内共聚乙烯和乙烯醇的酯的方法 包括聚合反应器和一个或多个压缩机，其将进料到聚合反应器的单体混合物压缩至聚合压力，其中单体混合物通过一系列压缩阶段压缩，其中压缩气体混合物在每个压缩阶段之后被冷却， 在该冷却后液体的单体混合物的分数被分离出并返回到液体形式的聚合装置中，并且其中在各个压缩阶段将单体混合物压缩后获得的至少一部分液体馏分为 在返回到聚合过程之前，将0.2MPa至10MPa的压力进行纯化。

公开(公告)号：US12110349B2

公开(公告)日：2024-10-08

申请号：US17312288

申请日：2019-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Andre-Armand Finette ,  Christoph Wolf ,  Michael Deuerling ,  Juergen Mohrbutter ,  Danir Khayrullin ,  Giulia Mei ,  Erich Neumann

IPC: C08F10/02 ,  B01J3/00 ,  B01J3/02 ,  B01J19/00 ,  B01J19/24 ,  C08F2/01 ,  C08F2/02

CPC classification number: C08F10/02 ,  B01J3/002 ,  B01J3/02 ,  B01J19/002 ,  B01J19/2415 ,  C08F2/01 ,  B01J2219/00033 ,  B01J2219/00162 ,  B01J2219/0027 ,  C08F2/02 ,  C08F2400/04

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.

公开(公告)号：US20220106418A1

公开(公告)日：2022-04-07

申请号：US17312288

申请日：2019-12-16

Applicant: Basell Polyolefine GmbH

Inventor： Dieter Littmann ,  Andre-Armand Finette ,  Christoph Wolf ,  Michael Deuerling ,  Juergen Mohrbutter ,  Danir Khayrullin ,  Giulia Mei ,  Erich Neumann

IPC: C08F10/02 ,  C08F2/01 ,  B01J19/00 ,  B01J19/24 ,  B01J3/02 ,  B01J3/00

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.

公开(公告)号：US11155649B2

公开(公告)日：2021-10-26

申请号：US16636804

申请日：2018-08-16

Applicant: Basell Polyolefine GmbH

Inventor： Christoph Wolf ,  Dieter Littmann ,  Michael Deuerling ,  Andre-Armand Finette ,  Danir Khayrullin ,  Juergen Mohrbutter

IPC: C08F2/01 ,  B01J3/00 ,  B01J3/04 ,  B01J19/00 ,  B01J19/24 ,  C08F10/02

Abstract: A process for the preparation of ethylene homopolymers or copolymers in a facility having a high-pressure tubular reactor and a preheater, wherein a reaction fluid introduced into the reactor at a reactor inlet is heated in the preheater and the average velocity of the reaction fluid in the preheater is lower than the average velocity of the reaction fluid in the tubular reactor and the ratio of the average velocity in the tubular reactor to the average velocity of the reaction fluid in the preheater is in the range from 1.5 to 5.