GB1083178A - Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same - Google Patents

Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same

Info

Publication number
GB1083178A
GB1083178A GB3539565A GB3539565A GB1083178A GB 1083178 A GB1083178 A GB 1083178A GB 3539565 A GB3539565 A GB 3539565A GB 3539565 A GB3539565 A GB 3539565A GB 1083178 A GB1083178 A GB 1083178A
Authority
GB
United Kingdom
Prior art keywords
polymerisation
cyclohexane
silica
sodium
olefins
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
Application number
GB3539565A
Inventor
Geoffrey Winton Alderson
Geoffrey James Gammon
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Priority to GB3539565A priority Critical patent/GB1083178A/en
Publication of GB1083178A publication Critical patent/GB1083178A/en
Expired 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

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)

Abstract

High molecular weight polymers are prepared by polymerizing a -olefins in the presence of a catalyst obtained by mixing molten lithium or sodium with an anhydrous potassium compound and contacting the resulting mixture with a composition comprising an oxide of chromium, at least part of which is in the hexavalent form, supported on silica and/or alumina. Specified olefins are ethylene, propylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1 and decene-1. Specified potassium compounds are the hydroxide, silicate, sulphate, halides and carbonate, which may be mixed with the alkali metal at 250 DEG to 500 DEG C. Polymerization may be effected in the presence of inert diluents, e.g. pentane, hexane, heptane, octane, benzene, xylene and cyclohexane. In examples ethylene is polymerized in the presence of cyclohexane and a catalyst comprising chromium trioxide on a silica/alumina support and a sodium/potassium carbonate cocatalyst.
GB3539565A 1965-08-18 1965-08-18 Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same Expired GB1083178A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3539565A GB1083178A (en) 1965-08-18 1965-08-18 Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3539565A GB1083178A (en) 1965-08-18 1965-08-18 Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same

Publications (1)

Publication Number Publication Date
GB1083178A true GB1083178A (en) 1967-09-13

Family

ID=10377250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3539565A Expired GB1083178A (en) 1965-08-18 1965-08-18 Improvements in or relating to polymerisation catalysts and polymerisation processesemploying same

Country Status (1)

Country Link
GB (1) GB1083178A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093300A (en) * 1983-04-04 1992-03-03 Solvay & Cie (Societe Anonyme) Method for activating a chromium-containing catalyst supported on a silica-containing base
US5200478A (en) * 1983-04-04 1993-04-06 Solvay S.A. Method for activating supported chromium oxide catalysts and olefin polymerization process carried out therewith

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093300A (en) * 1983-04-04 1992-03-03 Solvay & Cie (Societe Anonyme) Method for activating a chromium-containing catalyst supported on a silica-containing base
US5200478A (en) * 1983-04-04 1993-04-06 Solvay S.A. Method for activating supported chromium oxide catalysts and olefin polymerization process carried out therewith

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