GB863138A - Production of conjugated diolefines - Google Patents

Production of conjugated diolefines

Info

Publication number
GB863138A
GB863138A GB1458358A GB1458358A GB863138A GB 863138 A GB863138 A GB 863138A GB 1458358 A GB1458358 A GB 1458358A GB 1458358 A GB1458358 A GB 1458358A GB 863138 A GB863138 A GB 863138A
Authority
GB
United Kingdom
Prior art keywords
acid
solid
olefine
methylbutene
formaldehyde
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
GB1458358A
Inventor
John Habeshaw
Wilfred John Oldham
Max Marin Wirth
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.)
British Hydrocarbon Chemicals Ltd
Original Assignee
British Hydrocarbon Chemicals Ltd
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 British Hydrocarbon Chemicals Ltd filed Critical British Hydrocarbon Chemicals Ltd
Priority to GB1458358A priority Critical patent/GB863138A/en
Publication of GB863138A publication Critical patent/GB863138A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C07C2/86—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms
    • C07C2/867—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon the non-hydrocarbon contains only oxygen as hetero-atoms the non-hydrocarbon is an aldehyde or a ketone
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/06—Halogens; Compounds thereof
    • C07C2527/08—Halides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/06—Halogens; Compounds thereof
    • C07C2527/08—Halides
    • C07C2527/10—Chlorides
    • C07C2527/11—Hydrogen chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Conjugated diolefines are produced by the condensation of a mono-olefine containing up to 6 carbon atoms and formaldehyde or acetaldehyde in the vapour phase in the presence of a volatile acid boiling below 200 DEG C. at atmospheric pressure, or substance giving rise to such an acid under the reaction conditions, and a solid. The acid may be hydrogen chloride, hydrogen bromide, hydrogen iodide, formic acid, acetic acid, chloroacetic acid, trichloroacetic acid or trifluoroacetic acid; substances giving rise to acids include ammonium and alkyl halides. The solid may be silica gel, alumina, kieselguhr or pumice and may have deposited thereon a salt of a Group 2a or 2b metal, e.g. calcium, barium or cadmium. Preferred olefines are isobutene, 2-methylbutene-2, and 2-methylbutene-1. The mol ratio of olefine to aldehyde may be 1-20:1. Inert diluents in amounts of 0-95% by volume of the total mixture may be used, e.g. nitrogen, carbon dioxide, or lower paraffins particularly by employing industrial formalin as a source of formaldehyde. Where hydrogen chloride is added, amounts of 0,01-10% by weight of olefine may be used. Other reaction conditions may be 100-400 DEG C. with a space velocity of 0,1-50 mols of aldehyde per litre of solid per hour using stationary, moving or fluidised beds of solid. Unreacted starting materials may be recycled.
GB1458358A 1958-05-07 1958-05-07 Production of conjugated diolefines Expired GB863138A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1458358A GB863138A (en) 1958-05-07 1958-05-07 Production of conjugated diolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1458358A GB863138A (en) 1958-05-07 1958-05-07 Production of conjugated diolefines

Publications (1)

Publication Number Publication Date
GB863138A true GB863138A (en) 1961-03-15

Family

ID=10043845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1458358A Expired GB863138A (en) 1958-05-07 1958-05-07 Production of conjugated diolefines

Country Status (1)

Country Link
GB (1) GB863138A (en)

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