ES2157610T3 - Produccion de polietileno que tiene una distribucion de peso molecular bimodal. - Google Patents

Produccion de polietileno que tiene una distribucion de peso molecular bimodal.

Info

Publication number
ES2157610T3
ES2157610T3 ES97953880T ES97953880T ES2157610T3 ES 2157610 T3 ES2157610 T3 ES 2157610T3 ES 97953880 T ES97953880 T ES 97953880T ES 97953880 T ES97953880 T ES 97953880T ES 2157610 T3 ES2157610 T3 ES 2157610T3
Authority
ES
Spain
Prior art keywords
chromium
molecular weight
weight distribution
catalyst
around
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.)
Expired - Lifetime
Application number
ES97953880T
Other languages
English (en)
Inventor
Guy Debras
Philippe Bodart
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.)
Total Research and Technology Feluy SA
Original Assignee
Fina Research SA
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 Fina Research SA filed Critical Fina Research SA
Application granted granted Critical
Publication of ES2157610T3 publication Critical patent/ES2157610T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE PRODUCCION DE POLIETILENO DE ELEVADA DENSIDAD, CON UNA DISTRIBUCION DEL PESO MOLECULAR BIMODAL. DICHO PROCEDIMIENTO CONSISTE EN PONER EN CONTACTO PREVIO UN CATALIZADOR A BASE DE CROMO CON UN OXANO METALICO DE ALQUILO, DONDE DICHO CATALIZADOR COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE, PARA FORMAR UN SISTEMA CATALIZADOR EN EL CUAL LA RELACION ATOMICA DEL METAL DEL OXANO AL CROMO ES INFERIOR A 1; Y POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO, EN PRESENCIA DEL SISTEMA CATALIZADOR. SE DESCRIBE ASIMISMO UN SISTEMA CATALIZADOR PARA POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO, PARA PRODUCIR POLIETILENO DE ALTA DENSIDAD. EL SISTEMA CATALIZADOR COMPRENDE UN CATALIZADOR A BASE DE CROMO QUE COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE Y UN OXANO METALICO ALQUILICO, CON EL CUALSE HA PUESTO EN CONTACTO PREVIAMENTE DICHO CATALIZADOR, SIENDO LA RELACION ATOMICA DEL METAL DEL OXANO AL CROMO, MENOR QUE 1. SE DESCRIBE TAMBIEN UN PROCEDIMIENTO DE PRODUCCION DE POLIETILENO DE ALTA DENSIDAD CON UNA DISTRIBUCION DEL PESO MOLECULAR BIMODAL. DICHO PROCEDIMIENTO CONSISTE EN POLIMERIZAR ETILENO O COPOLIMERIZAR ETILENO Y UN COMONOMERO ALFA-OLEFINICO DE 3 A 10 ATOMOS DE CARBONO, EN PRESENCIA DE UN SISTEMA CATALIZADOR QUE CONTIENE UN CATALIZADOR A BASE DE CROMO, EL CUAL COMPRENDE OXIDO DE CROMO SOBRE UN SOPORTE QUE CONTIENE SILICE, Y UN OXANO METALICO ALQUILICO, EN UNA CANTIDAD DE APROX. EL 0,45 % EN PESO, BASADA EN EL PESO DEL CATALIZADOR A BASE DE CROMO.
ES97953880T 1996-12-20 1997-12-19 Produccion de polietileno que tiene una distribucion de peso molecular bimodal. Expired - Lifetime ES2157610T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96120697A EP0849294A1 (en) 1996-12-20 1996-12-20 Production of polyethylene having a broad molecular weight distribution

Publications (1)

Publication Number Publication Date
ES2157610T3 true ES2157610T3 (es) 2001-08-16

Family

ID=8223538

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97953880T Expired - Lifetime ES2157610T3 (es) 1996-12-20 1997-12-19 Produccion de polietileno que tiene una distribucion de peso molecular bimodal.

Country Status (9)

Country Link
US (2) US6417131B1 (es)
EP (2) EP0849294A1 (es)
JP (1) JP2001506695A (es)
AT (1) ATE200297T1 (es)
DE (1) DE69704501T2 (es)
DK (1) DK0946611T3 (es)
ES (1) ES2157610T3 (es)
PT (1) PT946611E (es)
WO (1) WO1998028348A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0849294A1 (en) * 1996-12-20 1998-06-24 Fina Research S.A. Production of polyethylene having a broad molecular weight distribution
US7943700B2 (en) * 2002-10-01 2011-05-17 Exxonmobil Chemical Patents Inc. Enhanced ESCR of HDPE resins
GB0720983D0 (en) 2007-10-26 2007-12-05 Ineos Silicas Ltd Catalyst particles their preparation and use

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1745495A1 (de) * 1967-01-31 1971-09-30 Union Carbide Corp Verfahren zur Herstellung eines Katalysatorkomplexes,insbesondere zur Herstellung von Polyaethylen
US4025707A (en) * 1974-03-28 1977-05-24 Phillips Petroleum Company Mixed hydrocarbyloxide treated catalyst activated at different temperatures
US4276399A (en) * 1978-11-17 1981-06-30 National Petro Chemicals Corp. Supported catalyst from chromium for olefin polymerization
DE3329016A1 (de) * 1983-08-11 1985-02-28 Basf Ag, 6700 Ludwigshafen Verfahren zum herstellen von polymerisaten des ethylens mittels eines kieselsaeure-xerogel/chromtrioxid-katalysators
JPH02105806A (ja) * 1988-10-13 1990-04-18 Nippon Oil Co Ltd エチレン重合体の製造方法
US5237025A (en) 1990-10-09 1993-08-17 Phillips Petroleum Company Process for making bimodal polyolefins using two independent particulate catalysts
EP0611378B1 (en) * 1991-11-04 1998-12-16 CHEVRON U.S.A. Inc. Olefin polymerization using an aluminoxane/chromium catalyst
EP0849294A1 (en) * 1996-12-20 1998-06-24 Fina Research S.A. Production of polyethylene having a broad molecular weight distribution

Also Published As

Publication number Publication date
US20020147285A1 (en) 2002-10-10
WO1998028348A1 (en) 1998-07-02
EP0946611A1 (en) 1999-10-06
EP0849294A1 (en) 1998-06-24
ATE200297T1 (de) 2001-04-15
JP2001506695A (ja) 2001-05-22
PT946611E (pt) 2001-09-28
DE69704501D1 (de) 2001-05-10
DE69704501T2 (de) 2002-03-28
EP0946611B1 (en) 2001-04-04
DK0946611T3 (da) 2001-07-09
US6417131B1 (en) 2002-07-09

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