GB841747A - Production of conjugated diolefines - Google Patents

Production of conjugated diolefines

Info

Publication number
GB841747A
GB841747A GB1129458A GB1129458A GB841747A GB 841747 A GB841747 A GB 841747A GB 1129458 A GB1129458 A GB 1129458A GB 1129458 A GB1129458 A GB 1129458A GB 841747 A GB841747 A GB 841747A
Authority
GB
United Kingdom
Prior art keywords
methylbutene
olefine
formaldehyde
aldehyde
conjugated diolefines
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
GB1129458A
Inventor
Herbert Muggleton Stanley
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 GB1129458A priority Critical patent/GB841747A/en
Publication of GB841747A publication Critical patent/GB841747A/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
    • C07C2527/14—Phosphorus; Compounds thereof
    • C07C2527/16—Phosphorus; Compounds thereof containing oxygen
    • C07C2527/167—Phosphates or other compounds comprising the anion (PnO3n+1)(n+2)-

Landscapes

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

Abstract

Conjugated diolefines are prepared by the condensation in the vapour phase, of a monoolefine of up to 6 carbon atoms with formaldehyde or acetaldehyde in the presence of a phosphate of a Group II element. The olefine is preferably tertiary; suitable are isobutene, 2-methylbutene-2 and 2-methylbutene-1. The molar ratio of olefine to aldehyde may be between 1:1 and 20:1. Up to 95% by volume of the reactants may be an inert diluent, e.g. steam, nitrogen, carbon dioxide or a lower hydrocarbon, or by using formalin as the source of formaldehyde. The temperature may be 150-400 DEG C. and the space velocity 0,1-50 moles of aldehyde per litre of catalyst per hour. The preferred catalyst is cadmium phosphate supported on alumina or silica which may be regenerated by oxidation.
GB1129458A 1958-04-09 1958-04-09 Production of conjugated diolefines Expired GB841747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1129458A GB841747A (en) 1958-04-09 1958-04-09 Production of conjugated diolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1129458A GB841747A (en) 1958-04-09 1958-04-09 Production of conjugated diolefines

Publications (1)

Publication Number Publication Date
GB841747A true GB841747A (en) 1960-07-20

Family

ID=9983586

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1129458A Expired GB841747A (en) 1958-04-09 1958-04-09 Production of conjugated diolefines

Country Status (1)

Country Link
GB (1) GB841747A (en)

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