HUT57799A - Process for decreasing the polymer quantity deposited in heat exchangers during polymerization of alpha-olefins - Google Patents

Process for decreasing the polymer quantity deposited in heat exchangers during polymerization of alpha-olefins

Info

Publication number
HUT57799A
HUT57799A HU908100A HU810090A HUT57799A HU T57799 A HUT57799 A HU T57799A HU 908100 A HU908100 A HU 908100A HU 810090 A HU810090 A HU 810090A HU T57799 A HUT57799 A HU T57799A
Authority
HU
Hungary
Prior art keywords
olefins
alpha
decreasing
heat exchangers
during polymerization
Prior art date
Application number
HU908100A
Other languages
English (en)
Other versions
HU908100D0 (en
Inventor
Weldon Clifford Cummings
Reginald Walter Geck
Fathi David Hussein
Original Assignee
Union Carbide Chem Plastic
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 Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of HU908100D0 publication Critical patent/HU908100D0/hu
Publication of HUT57799A publication Critical patent/HUT57799A/hu

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
    • C08F2/00—Processes of polymerisation
    • C08F2/34—Polymerisation in gaseous state
    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
    • 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
    • C08F2/00—Processes of polymerisation
    • C08F2/002—Scale prevention in a polymerisation reactor or its auxiliary parts
    • C08F2/007—Scale prevention in the auxiliary parts
    • 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
    • C08F110/04—Monomers containing three or four carbon atoms
    • C08F110/06—Propene
    • 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
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S526/901—Monomer polymerized in vapor state in presence of transition metal containing catalyst

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
HU908100A 1989-12-07 1990-12-06 Process for decreasing the polymer quantity deposited in heat exchangers during polymerization of alpha-olefins HUT57799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/447,049 US5037905A (en) 1989-12-07 1989-12-07 Process for reducing polymer build-up in heat exchangers during polymerization of alpha-olefins

Publications (2)

Publication Number Publication Date
HU908100D0 HU908100D0 (en) 1991-06-28
HUT57799A true HUT57799A (en) 1991-12-30

Family

ID=23774801

Family Applications (1)

Application Number Title Priority Date Filing Date
HU908100A HUT57799A (en) 1989-12-07 1990-12-06 Process for decreasing the polymer quantity deposited in heat exchangers during polymerization of alpha-olefins

Country Status (19)

Country Link
US (1) US5037905A (hu)
EP (1) EP0431626B1 (hu)
JP (1) JP2512344B2 (hu)
KR (1) KR950008719B1 (hu)
CN (1) CN1029619C (hu)
AR (1) AR244706A1 (hu)
AT (1) ATE121425T1 (hu)
AU (1) AU625791B2 (hu)
BR (1) BR9006060A (hu)
CA (1) CA2031699C (hu)
DE (1) DE69018785T2 (hu)
DK (1) DK0431626T3 (hu)
ES (1) ES2070983T3 (hu)
FI (1) FI906024L (hu)
GR (1) GR3015906T3 (hu)
HU (1) HUT57799A (hu)
MY (1) MY104558A (hu)
PT (1) PT96105A (hu)
ZA (1) ZA909812B (hu)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5194526A (en) * 1992-07-30 1993-03-16 Union Carbide Chemicals & Plastics Technology Corporation Process for producing sticky polymers
US5200502A (en) * 1992-08-26 1993-04-06 Union Carbide Chemicals & Plastics Technology Corporation Deactivator reagent for olefin polymerization catalysts
US5733988A (en) * 1994-06-29 1998-03-31 Union Carbide Chemicals & Plastics Technology Corporation Process for reducing polymer build-up in recycle lines and heat exchangers during polymerizations employing butadiene, isoprene, and/or styrene
US5625012A (en) * 1994-06-29 1997-04-29 Union Carbide Chemicals & Plastics Technology Corporation Process for reducing polymer build-up in recycle lines and heat exchangers during polymerization of alpha olefins
US6140432A (en) * 1995-07-13 2000-10-31 Exxon Chemical Patents Inc. Polymerization catalyst systems, their production and use
US6124230A (en) * 1995-07-13 2000-09-26 Exxon Chemical Patents, Inc. Polymerization catalyst systems, their production and use
USH1722H (en) * 1995-05-05 1998-04-07 Goode; Mark Gregory Process for producing polypropylene impact block copolymers
DE19800020A1 (de) * 1998-01-05 1999-07-08 Basf Ag Kontinuierliches Gasphasenpolymerisationsverfahren
US6201076B1 (en) 1999-04-29 2001-03-13 Equistar Chemicals, L.P. Olefin polymerization process with fatty amine additives for improved activity and reduced fouling
FI991015A0 (fi) 1999-05-04 1999-05-04 Borealis As Menetelmä alfa-olefiinipolymeerien valmistamiseksi
US6884749B2 (en) 2002-10-17 2005-04-26 Equistar Chemicals L.P. Supported catalysts which reduce sheeting in olefin polymerization, process for the preparation and the use thereof
EP1645569A4 (en) * 2003-07-15 2008-01-16 Mitsui Chemicals Inc METHOD FOR PREVENTING FOULING IN HEAT EXCHANGERS
US7858719B2 (en) * 2004-05-20 2010-12-28 Exxonmobil Chemical Patents Inc. Polymerization process
US7754830B2 (en) 2004-05-20 2010-07-13 Univation Technologies, Llc Polymerization reaction monitoring with determination of induced condensing agent concentration for preventing discontinuity events
US7683140B2 (en) 2004-05-20 2010-03-23 Univation Technologies, Llc Method for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring
US7253239B2 (en) * 2004-10-29 2007-08-07 Westlake Longview Corporation Method for preventing or inhibiting fouling in a gas-phase polyolefin polymerization process
JP2010502812A (ja) * 2006-09-07 2010-01-28 ユニベーション・テクノロジーズ・エルエルシー 溶融開始温度の降下に対するモデルを用いた樹脂粘着性の程度のオンライン決定のための方法
EP2059537B8 (en) * 2006-09-07 2017-02-22 Univation Technologies, LLC Methods for determining temperature value indicative of resin stickiness from data generated by polymerization reaction monitoring
EP2330135B1 (en) * 2009-12-02 2012-11-07 Borealis AG Process for producing polyolefins
RU2692265C2 (ru) 2015-03-25 2019-06-24 Базелл Полиолефин Гмбх Способы непрерывной газофазной полимеризации
CA3055722C (en) 2017-03-09 2021-06-15 Exxonmobil Chemical Patents Inc. Process for producing polyethylene polymers
KR102421977B1 (ko) 2018-12-19 2022-07-18 주식회사 엘지화학 방향족 비닐 화합물-비닐시안 화합물 중합체의 제조방법 및 제조장치
EP3868793B1 (en) * 2020-02-24 2026-01-07 Borealis GmbH Process for producing alpha-olefin polymers in a multistage polymerization process
EP4631613A1 (en) * 2024-04-11 2025-10-15 Lummus Novolen Technology GmbH Process and system for transferring polymer particles between polymerization zones arranged in series

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611908A (en) * 1979-07-11 1981-02-05 Mitsui Petrochem Ind Ltd Preparation of olefin polymer
US4675368A (en) * 1982-10-04 1987-06-23 Solvay & Cie. Process for inhibiting crust formation in reactors during alpha-olefin prepolymerization modification of Ziegler catalyst
US4520163A (en) * 1984-01-09 1985-05-28 Shell Oil Company Process of sequentially copolymerizing propylene-ethylene copolymers and catalyst therefor
US4981929A (en) * 1986-06-23 1991-01-01 Union Carbide Chemicals And Plastics Company, Inc. Catalyst productivity in the polymerization of olefins
DE3881728T3 (de) * 1987-03-14 1998-01-15 Mitsubishi Chem Ind Verfahren zur Herstellung eines Propylen-alpha-Olefin-Blockkopolymers.
ES2051320T3 (es) * 1988-05-12 1994-06-16 Union Carbide Corp Procedimiento para la preparacion de copolimeros al azar.
US4956427A (en) * 1988-12-23 1990-09-11 Union Carbide Chemicals And Plastics Company Inc. Process for reducing polymer build-up in polymerization equipment during polymerization of alpha-olefins

Also Published As

Publication number Publication date
EP0431626A1 (en) 1991-06-12
CN1029619C (zh) 1995-08-30
JP2512344B2 (ja) 1996-07-03
FI906024A0 (fi) 1990-12-05
MY104558A (en) 1994-04-30
AU625791B2 (en) 1992-07-16
GR3015906T3 (en) 1995-07-31
BR9006060A (pt) 1991-09-24
ES2070983T3 (es) 1995-06-16
ZA909812B (en) 1991-10-30
CA2031699A1 (en) 1991-06-08
CN1054602A (zh) 1991-09-18
PT96105A (pt) 1991-09-30
FI906024A7 (fi) 1991-06-08
KR950008719B1 (ko) 1995-08-04
FI906024L (fi) 1991-06-08
CA2031699C (en) 1996-12-24
EP0431626B1 (en) 1995-04-19
JPH0413703A (ja) 1992-01-17
ATE121425T1 (de) 1995-05-15
KR910011923A (ko) 1991-08-07
DK0431626T3 (da) 1995-05-08
AR244706A1 (es) 1993-11-30
DE69018785T2 (de) 1995-08-24
AU6778590A (en) 1991-06-13
US5037905A (en) 1991-08-06
DE69018785D1 (de) 1995-05-24
HU908100D0 (en) 1991-06-28

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