AU2001242375A1 - Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits - Google Patents

Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits

Info

Publication number
AU2001242375A1
AU2001242375A1 AU2001242375A AU4237501A AU2001242375A1 AU 2001242375 A1 AU2001242375 A1 AU 2001242375A1 AU 2001242375 A AU2001242375 A AU 2001242375A AU 4237501 A AU4237501 A AU 4237501A AU 2001242375 A1 AU2001242375 A1 AU 2001242375A1
Authority
AU
Australia
Prior art keywords
pressure
low
carrying
pressure polymerization
preventing undesired
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001242375A
Inventor
Andreas Deckers
Kaspar Evertz
Dieter Littmann
Frank-Olaf Mahling
Heinz Friedrich Sutoris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Basell Polyolefine GmbH
Original Assignee
BASF SE
Basell Polyolefine GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE, Basell Polyolefine GmbH filed Critical BASF SE
Publication of AU2001242375A1 publication Critical patent/AU2001242375A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/06—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type
    • C08F297/08—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the coordination type polymerising mono-olefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

In a process for the polymerization or copolymerization of ethylenically unsaturated monomers in the presence of polymerization initiators which decompose to form free radicals in a continuously operated polymerization apparatus comprising a fresh gas feed line, a precompressor, a postcompressor, a reactor, a pressure maintenance valve, a high-pressure circuit having a high-pressure product separator and a high-pressure circulation gas return line, a product valve and a low-pressure circuit having a low-pressure product separator and a low-pressure circulation gas return line, nitrogen monoxide or oxygen is introduced as inhibitor into the high-pressure circuit, into the low-pressure circuit and/or the precompressor.
AU2001242375A 2000-02-16 2001-02-08 Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits Abandoned AU2001242375A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10006900A DE10006900A1 (en) 2000-02-16 2000-02-16 Process for radical ethylene high-pressure polymerization while avoiding undesirable polymer deposits
DE10006900 2000-02-16
PCT/EP2001/001343 WO2001060875A1 (en) 2000-02-16 2001-02-08 Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits

Publications (1)

Publication Number Publication Date
AU2001242375A1 true AU2001242375A1 (en) 2001-08-27

Family

ID=7631097

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001242375A Abandoned AU2001242375A1 (en) 2000-02-16 2001-02-08 Method for carrying out radical ethylene high-pressure polymerization while preventing undesired polymer deposits

Country Status (8)

Country Link
US (1) US6562915B2 (en)
EP (1) EP1255784B1 (en)
JP (1) JP2003524034A (en)
CN (1) CN1172970C (en)
AT (1) ATE464332T1 (en)
AU (1) AU2001242375A1 (en)
DE (2) DE10006900A1 (en)
WO (1) WO2001060875A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10351262A1 (en) * 2003-10-31 2005-06-02 Basell Polyolefine Gmbh Continuous production of (co)polyethylene by high-pressure polymerization uses free radical initiator as solution in isoparaffin of given boiling range, which is separated in low pressure cycle and re-used for dissolving initiator
CN101454359A (en) * 2006-05-23 2009-06-10 巴斯夫欧洲公司 Method for producing ethylene copolymers
ATE542839T1 (en) 2009-11-10 2012-02-15 Basell Polyolefine Gmbh HIGH PRESSURE LDPE FOR MEDICAL APPLICATIONS
EP2589612A1 (en) * 2011-11-03 2013-05-08 Basell Polyolefine GmbH Process for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of free-radical polymerization initiators
CN102702396B (en) * 2012-06-08 2014-08-13 内蒙古宜化化工有限公司 Emergency treatment method and device for failure of PVC (polyvinyl chloride) polymerization reactor
US9266797B2 (en) * 2013-02-12 2016-02-23 Ecolab Usa Inc. Online monitoring of polymerization inhibitors for control of undesirable polymerization
KR20150135422A (en) * 2013-03-28 2015-12-02 사우디 베이식 인더스트리즈 코포레이션 High pressure polymerisation process for the preparation of polyethylene
US9399622B2 (en) 2013-12-03 2016-07-26 Ecolab Usa Inc. Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
EP3274380B1 (en) 2015-04-20 2020-08-19 ExxonMobil Chemical Patents Inc. Catalyst composition comprising fluorided support and processes for use thereof
US10400046B2 (en) * 2015-06-25 2019-09-03 Joseph J. Matsko Portable powered paint system
EP3317009B1 (en) 2015-06-30 2020-01-08 ExxonMobil Chemical Patents Inc. Control of fouling in high pressure polyethylene manufacture
CN112321757A (en) 2015-08-31 2021-02-05 埃克森美孚化学专利公司 Regulator control in high pressure polyethylene production
US10723678B2 (en) 2015-11-12 2020-07-28 Sabic Global Technologies B.V. Methods for using nitric oxide to inhibit popcorn polymerization during butadiene processing
US11186654B2 (en) 2016-12-20 2021-11-30 Exxonmobil Chemical Patents Inc. Methods for controlling start up conditions in polymerization processes
US11230614B2 (en) 2017-02-03 2022-01-25 Exxonmobil Chemical Patent Inc. Methods for making polyethylene polymers
CA3052770C (en) 2017-02-07 2021-09-07 Exxonmobil Chemical Patents Inc. Processes for reducing the loss of catalyst activity of a ziegler-natta catalyst
US10822434B2 (en) 2017-10-23 2020-11-03 Exxonmobil Chemical Patents Inc. Catalyst systems and polymerization processes for using the same
EP3898708B1 (en) * 2018-12-18 2022-06-15 Basell Polyolefine GmbH High-pressure polymerization process of ethylenically unsaturated monomers in a polymerization reactor
BR112022017050A2 (en) * 2020-03-31 2022-11-16 Dow Global Technologies Llc ANTI-FULING AND PROCESS
WO2021202278A1 (en) * 2020-03-31 2021-10-07 Dow Global Technologies Llc Antifoulant and process
CN117897413A (en) 2021-09-01 2024-04-16 埃克森美孚化学专利公司 Variable temperature tubular reactor distribution and medium density polyethylene compositions produced therefrom

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2516003B2 (en) 1987-01-29 1996-07-10 日本石油化学株式会社 Method for producing ethylene copolymer
JPH04146912A (en) * 1990-10-09 1992-05-20 Chisso Corp Continuous production of propylene/alpha-olefin block copolymer
DE4441822A1 (en) 1994-11-24 1996-05-30 Basf Ag Process for the preparation of copolymers of ethylene with alkenecarboxylic acids
US5449724A (en) 1994-12-14 1995-09-12 Xerox Corporation Stable free radical polymerization process and thermoplastic materials produced therefrom
DE19622441A1 (en) 1996-06-05 1997-12-11 Basf Ag Process for compressing ethylenically unsaturated monomers
DE19800020A1 (en) 1998-01-05 1999-07-08 Basf Ag Continuous gas phase polymerization process
DE19818216A1 (en) 1998-04-24 1999-10-28 Elenac Gmbh Process for the polymerization of ethylene, optionally with vinyl unsaturated monomers

Also Published As

Publication number Publication date
DE10006900A1 (en) 2001-08-23
CN1172970C (en) 2004-10-27
CN1400980A (en) 2003-03-05
JP2003524034A (en) 2003-08-12
EP1255784B1 (en) 2010-04-14
WO2001060875A1 (en) 2001-08-23
US20030008982A1 (en) 2003-01-09
ATE464332T1 (en) 2010-04-15
EP1255784A1 (en) 2002-11-13
US6562915B2 (en) 2003-05-13
DE50115432D1 (en) 2010-05-27

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