GB804070A - Dimerization of polypropylenes - Google Patents

Dimerization of polypropylenes

Info

Publication number
GB804070A
GB804070A GB1572957A GB1572957A GB804070A GB 804070 A GB804070 A GB 804070A GB 1572957 A GB1572957 A GB 1572957A GB 1572957 A GB1572957 A GB 1572957A GB 804070 A GB804070 A GB 804070A
Authority
GB
United Kingdom
Prior art keywords
boron trifluoride
complex
propylene
carbon atoms
reaction mixture
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
GB1572957A
Inventor
Charles Anschel Cohen
Clifford Wesley Muessig
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB1572957A priority Critical patent/GB804070A/en
Publication of GB804070A publication Critical patent/GB804070A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/02Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons
    • C07C2/04Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation
    • C07C2/06Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
    • C07C2/08Catalytic processes
    • C07C2/14Catalytic processes with inorganic acids; with salts or anhydrides of acids
    • C07C2/20Acids of halogen; Salts thereof ; Complexes thereof with organic compounds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/06Halogens; Compounds thereof
    • C07C2527/08Halides
    • C07C2527/12Fluorides
    • C07C2527/1213Boron fluoride
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2531/00Catalysts comprising hydrides, coordination complexes or organic compounds
    • C07C2531/02Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Propylene polymers of 12 to 24 carbon atoms are prepared by dimerizing propylene polymers of 6 to 12 carbon atoms at 0-100 DEG C. in the presence of a preformed boron trifluoride-ether complex and excess boron trifluoride. The starting polypropylene may be a narrow fraction of a simple propylene polymerization product. Specified ethers which may be used in the complex are dimethyl, diethyl, diisopropyl, methyl ethyl and methyl tertiary butyl ethers. The amount of complex used may be 1 to 10 weight per cent of the polypropylene to be dimerized. Excess boron trifluoride is maintained by passing the gas through the reaction mixture. Pressures of 1 to 10 atmospheres may be used to maintain liquid phase conditions. Batch or continuous operation can be used. The catalyst can be decomposed with water and the oily product separated from the aqueous layer and fractionated to obtain the desired dimer from unconverted material and any other products formed. Examples illustrate the dimerization of a C9 and a C12 propylene polymer cut using a complex of ethyl ether and boron trifluoride containing 45 weight per cent of boron trifluoride at 60-70 DEG C. for four hours, boron trifluoride gas being slowly passed through the reaction mixture throughout the reaction period.
GB1572957A 1957-05-17 1957-05-17 Dimerization of polypropylenes Expired GB804070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1572957A GB804070A (en) 1957-05-17 1957-05-17 Dimerization of polypropylenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1572957A GB804070A (en) 1957-05-17 1957-05-17 Dimerization of polypropylenes

Publications (1)

Publication Number Publication Date
GB804070A true GB804070A (en) 1958-11-05

Family

ID=10064451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1572957A Expired GB804070A (en) 1957-05-17 1957-05-17 Dimerization of polypropylenes

Country Status (1)

Country Link
GB (1) GB804070A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956513A (en) * 1988-10-17 1990-09-11 Ethyl Corporation Recovery of BF3 from olefin oligomer process
US5068490A (en) * 1989-08-18 1991-11-26 Amoco Corporation BF3-tertiary etherate complexes for isobutylene polymerization
WO1993010063A1 (en) * 1991-11-18 1993-05-27 Amoco Corporation Bf3-tertiary etherate complexes for isobutylene polymerization

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4956513A (en) * 1988-10-17 1990-09-11 Ethyl Corporation Recovery of BF3 from olefin oligomer process
US5068490A (en) * 1989-08-18 1991-11-26 Amoco Corporation BF3-tertiary etherate complexes for isobutylene polymerization
WO1993010063A1 (en) * 1991-11-18 1993-05-27 Amoco Corporation Bf3-tertiary etherate complexes for isobutylene polymerization

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