ES2181060T3 - Produccion de polietileno con una distribucion de peso molecular bimodal. - Google Patents

Produccion de polietileno con una distribucion de peso molecular bimodal.

Info

Publication number
ES2181060T3
ES2181060T3 ES97954931T ES97954931T ES2181060T3 ES 2181060 T3 ES2181060 T3 ES 2181060T3 ES 97954931 T ES97954931 T ES 97954931T ES 97954931 T ES97954931 T ES 97954931T ES 2181060 T3 ES2181060 T3 ES 2181060T3
Authority
ES
Spain
Prior art keywords
chromium
catalyst
reduced
molecular weight
production
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
ES97954931T
Other languages
English (en)
Inventor
Guy Debras
Jean-Pierre Dath
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
Atofina 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 Atofina Research SA filed Critical Atofina Research SA
Application granted granted Critical
Publication of ES2181060T3 publication Critical patent/ES2181060T3/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)
  • Polymerization Catalysts (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE COPOLIMERIZACION DE ETILENO Y DE UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO, EN PRESENCIA DE UN SISTEMA CATALIZADOR QUE COMPRENDE UN PRIMER Y UN SEGUNDO CATALIZADOR A BASE DE CROMO, DONDE EL PRIMER CATALIZADOR A BASE DE CROMO HA SIDO REDUCIDO Y REOXIDADO, Y EL SEGUNDO CATALIZADOR A BASE DE CROMO HA SIDO ACTIVADO, FLUORADO ANTES O DURANTE LA FASE DE ACTIVACION, Y REDUCIDO. AMBOS CATALIZADORES PRESENTAN UNA DIFERENCIA DE VOLUMEN DE PORO DE AL MENOS 0,8 CC/G. SE PROPORCIONA ADEMAS UN SISTEMA CATALIZADOR PARA LA PRODUCCION DE ETILENO DE ELEVADA DENSIDAD MEDIANTE LA POLIMERIZACION DE ETILENO O LA COPOLIMERIZACION DE ETILENO Y DE UN COMONOMERO ALFA-OLEFINICO QUE COMPRENDE DE 3 A 10 ATOMOS DE CARBONO; DICHO SISTEMA CATALIZADOR COMPRENDE UN PRIMER Y UN SEGUNDO CATALIZADOR A BASE DE CROMO, DONDE EL PRIMER CATALIZADOR HA SIDO REDUCIDO Y REOXIDADO Y EL SEGUNDO CATALIZADOR HA SIDO ACTIVADO, FLUORADO ANTES O DESPUES DE LA FASE DEACTIVACION Y REDUCIDO, Y TENIENDO AMBOS CATALIZADORES UNA DIFERENCIA DE VOLUMEN DE PORO DE AL MENOS 0,8 CC/G. SE DESCRIBE ASIMISMO LA UTILIZACION DE DICHO SISTEMA CATALIZADOR PARA INCREMENTAR LA BIMODALIDAD DE LA DISTRIBUCION DEL PESO MOLECULAR DE UN POLIETILENO DE ELEVADA DENSIDAD.
ES97954931T 1996-12-20 1997-12-19 Produccion de polietileno con una distribucion de peso molecular bimodal. Expired - Lifetime ES2181060T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96120696A EP0849293A1 (en) 1996-12-20 1996-12-20 Production of polyethylene having a bimodal molecular weight distribution

Publications (1)

Publication Number Publication Date
ES2181060T3 true ES2181060T3 (es) 2003-02-16

Family

ID=8223537

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97954931T Expired - Lifetime ES2181060T3 (es) 1996-12-20 1997-12-19 Produccion de polietileno con una distribucion de peso molecular bimodal.

Country Status (7)

Country Link
US (2) US6015866A (es)
EP (2) EP0849293A1 (es)
JP (1) JP2001506696A (es)
AT (1) ATE222267T1 (es)
DE (1) DE69714767T2 (es)
ES (1) ES2181060T3 (es)
WO (1) WO1998028349A1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19754380A1 (de) * 1997-12-09 1999-06-10 Basf Ag Gasphasenwirbelschichtverfahren und danach erhältliche Ethylenhomo- und -copolymere
EP0967234A1 (en) * 1998-06-24 1999-12-29 Fina Research S.A. Production of polyethylene
BE1012566A3 (fr) 1999-03-23 2000-12-05 Solvay Procede pour la production de polymeres de l'ethylene.
EP1041089A1 (en) 1999-03-29 2000-10-04 Fina Research S.A. Production of polyethylene
DE10034191A1 (de) * 2000-07-13 2002-01-24 Basell Polyolefine Gmbh Kunststoffhohlkörper aus hochdichten Polyolefinen hergestellt mit einem fluormodifizierten Chrom-Katalysator
AU2003226163A1 (en) * 2003-03-31 2004-11-23 Exxonmobil Chemical Patents Inc. Catalyst activation method and activated catalyst
US6982304B2 (en) * 2003-12-22 2006-01-03 Union Carbide Chemicals & Plastics Technology Corporation Blow molding resins with improved ESCR
US8440125B2 (en) * 2004-06-28 2013-05-14 Equistar Chemicals, Lp Polyethylene films having high resistance to deformation or elongation
WO2016141020A1 (en) * 2015-03-02 2016-09-09 Equistar Chemicals, Lp Catalysts and methods of controlling long chain branching in polyolefins

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025707A (en) 1974-03-28 1977-05-24 Phillips Petroleum Company Mixed hydrocarbyloxide treated catalyst activated at different temperatures
US4130505A (en) * 1974-09-26 1978-12-19 Phillips Petroleum Company Two stage activation of fluorided chromium-containing catalyst
US4011382A (en) * 1975-03-10 1977-03-08 Union Carbide Corporation Preparation of low and medium density ethylene polymer in fluid bed reactor
US5081089A (en) * 1987-05-20 1992-01-14 National Distillers And Chemical Corporation Chromium catalyst compositions and polymerization utilizing same
US5310834A (en) 1987-05-20 1994-05-10 Quantum Chemical Corporation Mixed chromium catalysts and polymerizations utilizing same
US5198400A (en) * 1987-05-20 1993-03-30 Quantum Chemical Corporation Mixed chromium catalysts and polymerizations utilizing same
CA1307619C (en) 1987-05-20 1992-09-15 Louis J. Rekers Chromium catalyst compositions and polymerization utilizing same
US4981927A (en) * 1987-05-20 1991-01-01 National Distillers And Chemical Corporation Chromium catalyst compositions and polymerization utilizing same
US5034364A (en) 1989-11-09 1991-07-23 Mobil Oil Corporation Multiple chromium compound-containing catalyst composition and olefin polymerization therewith
US5237025A (en) 1990-10-09 1993-08-17 Phillips Petroleum Company Process for making bimodal polyolefins using two independent particulate catalysts
US5221720A (en) * 1991-01-02 1993-06-22 Phillips Petroleum Company Fluorided aluminas, catalysts, and polymerization processes
US5219962A (en) * 1991-01-02 1993-06-15 Phillips Petroleum Company Fluorided aluminas, catalysts, and polymerization processes
US5364915A (en) * 1992-09-25 1994-11-15 Phillips Petroleum Company Ethylene polymerization process
US5486584A (en) 1992-10-08 1996-01-23 Phillips Petroleum Company Chromium catalyst compositions
US5508362A (en) * 1993-10-08 1996-04-16 Phillips Petroleum Company Chromium catalyst compositions and polymerization processes therewith

Also Published As

Publication number Publication date
EP0946612A1 (en) 1999-10-06
DE69714767T2 (de) 2003-05-15
WO1998028349A1 (en) 1998-07-02
DE69714767D1 (de) 2002-09-19
US6015866A (en) 2000-01-18
US6294500B1 (en) 2001-09-25
ATE222267T1 (de) 2002-08-15
EP0849293A1 (en) 1998-06-24
EP0946612B1 (en) 2002-08-14
JP2001506696A (ja) 2001-05-22

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