NO941970L - Process for preparing an olefin polymerization catalyst consisting of particles of equal size - Google Patents

Process for preparing an olefin polymerization catalyst consisting of particles of equal size

Info

Publication number
NO941970L
NO941970L NO941970A NO941970A NO941970L NO 941970 L NO941970 L NO 941970L NO 941970 A NO941970 A NO 941970A NO 941970 A NO941970 A NO 941970A NO 941970 L NO941970 L NO 941970L
Authority
NO
Norway
Prior art keywords
reaction
carrier particles
particles
procatalyst composition
polymerization
Prior art date
Application number
NO941970A
Other languages
Norwegian (no)
Other versions
NO941970D0 (en
Inventor
Thomas Garoff
Jukka Koskinen
Original Assignee
Neste Oy
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 Neste Oy filed Critical Neste Oy
Publication of NO941970L publication Critical patent/NO941970L/en
Publication of NO941970D0 publication Critical patent/NO941970D0/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Polymerization Catalysts (AREA)

Abstract

En partikkelformet prokatalysatorsammensetning beregnet for polymerisasjon av olefiner blir fremstilt ved å reagere bærerpartikler som består av MgCl2-C2H5OH- kompleks med T1C14. Når fremgangsmåten blir anvendt i pilot-skala, ble det bemerket at prokatalysatorsammen- setnlngen som ble oppnådd fremstilte olefinpolymer, der den finfordelte materialdelen av denne var skadelig høy. Dette var forårsaket av det faktum at prokataly- satorsammensetningspartiklene hadde dekomponert til flnfordelt materiale under syntesen, og dette ble gjentatt i polymerisasjonen i polymerstrukturen på grunn av det såkalte replica-fenomenet. I foreliggende oppfinnelse har det på uventet måte blitt registrert at brekkasje av bærerpartikler ikke er et resultat av f.eks. mekanisk belastning, men av det faktum at når bærerpartiklene reagerer med T1C14 , forekommer først en tung uttømmlng av hydrogenklorid som et resultat av reaksjonen som bryter bærerpartiklene. Bærerpartiklene kan ifølge oppfinnelsen bli beholdt uskadde under reaksjonen ved å fordele frigjøringen av reaksjonen eller fra reaksjon av hydrogenklorid skapt i reaksjonen til en molar hastighet som ikke overskrider en fem ganger verdi av den molare gjennomsnittlige hastigheten på frlgivingen. Dette blir oppnådd bl.a. ved tilsetning av reagenser uvanlig langsomt, ved å anvende lavere temperaturer og oppvarmingshastigheter, ved intensi- vering av risting, .ved anvendelse av et overtrykk og/eller ved å lede fortynnet inert gass i reaksjons- blandlngen.A particulate procatalyst composition intended for polymerization of olefins is prepared by reacting carrier particles consisting of MgCl2-C2H5OH complex with T1C14. When the process is used on a pilot scale, it was noted that the procatalyst composition obtained produced olefin polymer, the finely divided material portion thereof being damagingly high. This was caused by the fact that the procatalyst composition particles had decomposed into finely divided material during the synthesis, and this was repeated in the polymerization in the polymer structure due to the so-called replica phenomenon. In the present invention, it has been unexpectedly recorded that breakage of carrier particles is not a result of e.g. mechanical load, but by the fact that when the carrier particles react with T1C14, a heavy depletion of hydrogen chloride first occurs as a result of the reaction which breaks the carrier particles. The carrier particles of the invention can be retained undamaged during the reaction by distributing the release of the reaction or from the reaction of hydrogen chloride created in the reaction to a molar rate not exceeding a five times the molar average release rate. This is achieved, among other things. by adding reagents unusually slowly, by using lower temperatures and heating rates, by intensifying shaking, by using an overpressure and / or by conducting dilute inert gas in the reaction mixture.

NO941970A 1991-11-29 1994-05-26 Process for preparing an olefin polymerization catalyst consisting of particles of equal size NO941970D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI915630A FI92327C (en) 1991-11-29 1991-11-29 A process for preparing an olefin polymerization catalyst having uniform particle sizes
PCT/FI1992/000322 WO1993011164A1 (en) 1991-11-29 1992-11-27 Method for the preparation of an olefin polymerization catalyst consisting of particles of equal size

Publications (2)

Publication Number Publication Date
NO941970L true NO941970L (en) 1994-05-26
NO941970D0 NO941970D0 (en) 1994-05-26

Family

ID=8533576

Family Applications (1)

Application Number Title Priority Date Filing Date
NO941970A NO941970D0 (en) 1991-11-29 1994-05-26 Process for preparing an olefin polymerization catalyst consisting of particles of equal size

Country Status (5)

Country Link
EP (1) EP0614466A1 (en)
JP (1) JPH07501568A (en)
FI (1) FI92327C (en)
NO (1) NO941970D0 (en)
WO (1) WO1993011164A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323152B1 (en) 1998-03-30 2001-11-27 Basell Technology Company Bv Magnesium dichloride-alcohol adducts process for their preparation and catalyst components obtained therefrom
US6407028B1 (en) 1997-03-29 2002-06-18 Basell Technology Company Bv Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom
EP0914351B1 (en) * 1997-03-29 2004-02-18 Basell Poliolefine Italia S.p.A. Magnesium dichloride-alcohol adducts, process for their preparation and catalyst components obtained therefrom
US7135531B2 (en) 2004-01-28 2006-11-14 Basf Catalysts Llc Spherical catalyst for olefin polymerization
US6962889B2 (en) 2004-01-28 2005-11-08 Engelhard Corporation Spherical catalyst for olefin polymerization
US8003559B2 (en) 2008-05-13 2011-08-23 Basf Corporation Internal donor for olefin polymerization catalysts
US7638585B2 (en) 2008-05-13 2009-12-29 Basf Catalysts, Llc Catalyst flow
US8003558B2 (en) 2008-07-29 2011-08-23 Basf Corporation Internal donor for olefin polymerization catalysts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI80055C (en) * 1986-06-09 1990-04-10 Neste Oy Process for preparing catalytic components for polymerization of olefins
FI84357C (en) * 1989-10-20 1991-11-25 Neste Oy Process and apparatus for preparing polymerization catalyst supports

Also Published As

Publication number Publication date
FI915630A (en) 1993-05-30
FI92327B (en) 1994-07-15
EP0614466A1 (en) 1994-09-14
WO1993011164A1 (en) 1993-06-10
FI915630A0 (en) 1991-11-29
NO941970D0 (en) 1994-05-26
FI92327C (en) 1994-10-25
JPH07501568A (en) 1995-02-16

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