GB827537A - Process for the polymerisation of ethylene - Google Patents

Process for the polymerisation of ethylene

Info

Publication number
GB827537A
GB827537A GB19554/56A GB1955456A GB827537A GB 827537 A GB827537 A GB 827537A GB 19554/56 A GB19554/56 A GB 19554/56A GB 1955456 A GB1955456 A GB 1955456A GB 827537 A GB827537 A GB 827537A
Authority
GB
United Kingdom
Prior art keywords
medium
distillation
ethylene
fraction
reaction medium
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
GB19554/56A
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie AG
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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB827537A publication Critical patent/GB827537A/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
    • 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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Ethylene is polymerized in a hydrocarbon fraction as reaction medium and with a catalyst comprising an aluminium alkyl compound and a compound of a Group IVa, Va or VIa metal, characterized in that the content of liquid constituents which boil at temperatures higher than the medium is maintained at less than 1% of the medium. The process may be batchwise or continuous and the use of purified aliphatic or hydroaromatic hydrocarbon fractions is specified. In an example a C7 to C9 fraction of boiling range 70-150 DEG C. is used and constituents boiling above 150 DEG C. are removed therefrom by distillation. The preferred process of the invention comprises the withdrawal of part of the reaction medium, the optional separation therefrom of residual catalyst (e.g. with nitric acid), followed by distillation, and then the recycling of the treated medium, preferably after a refining operation with concentrated sulphuric acid and water or alkali.
GB19554/56A 1955-07-28 1956-06-25 Process for the polymerisation of ethylene Expired GB827537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE827537X 1955-07-28

Publications (1)

Publication Number Publication Date
GB827537A true GB827537A (en) 1960-02-03

Family

ID=6748040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19554/56A Expired GB827537A (en) 1955-07-28 1956-06-25 Process for the polymerisation of ethylene

Country Status (4)

Country Link
BE (1) BE549629A (en)
FR (1) FR1151903A (en)
GB (1) GB827537A (en)
NL (1) NL200397A (en)

Also Published As

Publication number Publication date
BE549629A (en)
FR1151903A (en) 1958-02-07
NL200397A (en)

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