FR2398083A1 - SUPPORT CATALYST FOR THE POLYMERIZATION OF 1-ALCENES, IN PARTICULAR ETHYLENE - Google Patents

SUPPORT CATALYST FOR THE POLYMERIZATION OF 1-ALCENES, IN PARTICULAR ETHYLENE

Info

Publication number
FR2398083A1
FR2398083A1 FR7821134A FR7821134A FR2398083A1 FR 2398083 A1 FR2398083 A1 FR 2398083A1 FR 7821134 A FR7821134 A FR 7821134A FR 7821134 A FR7821134 A FR 7821134A FR 2398083 A1 FR2398083 A1 FR 2398083A1
Authority
FR
France
Prior art keywords
carbon atoms
polymerization
group
compound
mol
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.)
Granted
Application number
FR7821134A
Other languages
French (fr)
Other versions
FR2398083B1 (en
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of FR2398083A1 publication Critical patent/FR2398083A1/en
Application granted granted Critical
Publication of FR2398083B1 publication Critical patent/FR2398083B1/fr
Granted 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
    • C08F4/00—Polymerisation catalysts
    • C08F4/02—Carriers therefor
    • C08F4/025—Metal oxides
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

La présente invention concerne la polymérisation d'oléfines. Il s'agit d'un procédé de polymérisation de 1-alcène ayant de 2 à 8 atomes de carbone avec éventuellement des quantités secondaires, de 10 % en moles au maximum, d'un ou plusieurs autres 1-alcènes ayant de 2 à 8 atomes de carbone, en particulier l'éthylène, si on le désire, avec au maximum 2 % en moles de propylène, et/ou de butylène, en présence d'un catalyseur que l'on obtient en faisant réagir un composé chromo-1,3-dicéto de formule Cr(OCR1 CR2 CR3 O)3 , où R1 , R2 et R3 sont semblables ou différents et représentent chacun un groupe alcoyle ayant de 1 à 10 atomes de carbone, cependant que R2 peut en outre représenter un atome d'hydrogène, avec un composé organo-métallique d'un métal du groupe II ou III de la classification périodique des éléments, dans lequel les groupes hydrocarbonés ayant de 1 à 20 atomes de carbone sont liés par l'intermédiaire d'un atome de carbone au métal concerné, puis en mettant en contact ce produit réactionnel avec un support inorganique inerte, en chauffant le produit réactionnel du composé chromé précipité sur le support dans une atmosphère non-réductrice à une température comprise entre 200 degrés C et 1 200 degrés C et enfin en joignant le produit obtenu de cette manière à un composé organo-métallique d'un élément du groupe II ou III de la classification périodique des éléments, caractérisé en ce que l'on utilise comme support de catalyseur un dioxyde de silicium ayant un volume de pores d'au moins 1,5 cm**3/g et un contenu en sodium d'au plus 200 ppm. Ce procédé permet notamment d'augmenter les rendements de fabrication de polyéthylène.The present invention relates to the polymerization of olefins. This is a process for the polymerization of 1-alkene having 2 to 8 carbon atoms with optionally secondary amounts, of 10 mol% at most, of one or more other 1-alkenes having 2 to 8 carbon atoms, in particular ethylene, if desired, with a maximum of 2 mol% of propylene, and / or butylene, in the presence of a catalyst obtained by reacting a chromo-1 compound , 3-diketo of the formula Cr (OCR1 CR2 CR3 O) 3, where R1, R2 and R3 are the same or different and each represents an alkyl group having from 1 to 10 carbon atoms, while R2 may additionally represent a d atom. 'hydrogen, with an organometallic compound of a metal of Group II or III of the Periodic Table of the Elements, in which the hydrocarbon groups having 1 to 20 carbon atoms are bonded through a carbon atom to the metal concerned, then by bringing this reaction product into contact with an inert inorganic support, heated nt the reaction product of the chromium compound precipitated on the support in a non-reducing atmosphere at a temperature between 200 degrees C and 1,200 degrees C and finally by joining the product obtained in this way to an organometallic compound of an element of Group II or III of the Periodic Table of the Elements, characterized in that silicon dioxide having a pore volume of at least 1.5 cm ** 3 / g and a content of sodium not exceeding 200 ppm. This process makes it possible in particular to increase the production yields of polyethylene.

FR7821134A 1977-07-18 1978-07-17 SUPPORT CATALYST FOR THE POLYMERIZATION OF 1-ALCENES, IN PARTICULAR ETHYLENE Granted FR2398083A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7707959,A NL189713C (en) 1977-07-18 1977-07-18 CARRYING CATALYST FOR THE POLYMERIZATION OF 1-OLEFINS, PARTICULARLY ETHENE.

Publications (2)

Publication Number Publication Date
FR2398083A1 true FR2398083A1 (en) 1979-02-16
FR2398083B1 FR2398083B1 (en) 1982-11-19

Family

ID=19828895

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7821134A Granted FR2398083A1 (en) 1977-07-18 1978-07-17 SUPPORT CATALYST FOR THE POLYMERIZATION OF 1-ALCENES, IN PARTICULAR ETHYLENE

Country Status (10)

Country Link
JP (1) JPS5421481A (en)
AT (1) AT367073B (en)
BE (1) BE868936A (en)
DE (1) DE2831533A1 (en)
ES (1) ES471405A1 (en)
FR (1) FR2398083A1 (en)
GB (1) GB2001329B (en)
IT (1) IT1105094B (en)
NL (1) NL189713C (en)
SE (1) SE439775B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841436A1 (en) * 1988-12-09 1990-06-13 Basf Ag METHOD FOR PRODUCING HOMOS AND COPOLYMERISATES OF ETHENS BY PHILLIPS CATALYSIS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5260388A (en) * 1975-11-12 1977-05-18 Hitachi Seiko Ltd Error correcting system for numerical controller
NL171273C (en) * 1976-05-24 1983-03-01 Stamicarbon PROCESS FOR POLYMERIZING OLEFINS AND PROCESS FOR PREPARING A CHROME OXIDE ON CARRIER CATALYST.
JPS5384502A (en) * 1976-12-29 1978-07-26 Seiko Instr & Electronics Ltd Selective calling unit

Also Published As

Publication number Publication date
NL189713B (en) 1993-02-01
GB2001329B (en) 1982-01-27
NL189713C (en) 1993-07-01
ES471405A1 (en) 1979-01-16
DE2831533A1 (en) 1979-02-01
IT1105094B (en) 1985-10-28
GB2001329A (en) 1979-01-31
JPS5421481A (en) 1979-02-17
AT367073B (en) 1982-05-25
SE439775B (en) 1985-07-01
IT7850269A0 (en) 1978-07-12
ATA494078A (en) 1981-10-15
DE2831533C2 (en) 1990-12-06
BE868936A (en) 1979-01-12
FR2398083B1 (en) 1982-11-19
NL7707959A (en) 1979-01-22
SE7807948L (en) 1979-01-19

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