GB863136A - Production of conjugated diolefins - Google Patents

Production of conjugated diolefins

Info

Publication number
GB863136A
GB863136A GB3110657A GB3110657A GB863136A GB 863136 A GB863136 A GB 863136A GB 3110657 A GB3110657 A GB 3110657A GB 3110657 A GB3110657 A GB 3110657A GB 863136 A GB863136 A GB 863136A
Authority
GB
United Kingdom
Prior art keywords
olefines
methylbutene
formaldehyde
olefine
production
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
GB3110657A
Inventor
Wilfred John Oldham
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 GB3110657A priority Critical patent/GB863136A/en
Publication of GB863136A publication Critical patent/GB863136A/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
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/16—Clays or other mineral silicates
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In the preparation of conjugated diolefines by the vapour phase catalytic condensation of a mono-olefine containing up to 6 carbon atoms with formaldehyde or acetaldehyde, a molar ratio of olefine to aldehyde of at least 6:1 is maintained. The preferred olefines are tertiary olefines or those which isomerise to tertiary olefines under the reaction conditions; specified are isobutene, 2- methylbutene-1 and 2- methylbutene-2. Temperatures of 150-400 DEG C. and any pressure, preferably atmospheric to 100 p.s.i. are used with contact times of 0,05-10, preferably less than 5 seconds. An inert diluent may be present e.g. water vapour (particularly with formaldehyde by using formalin), nitrogen, carbon dioxide or lower paraffins in amounts up to 95 volume per cent. The preferred catalysts are those described in Specifications 826,545, 826,546, 841,746, 841,747, 841,748, 863,138 and 863,139.
GB3110657A 1957-10-04 1957-10-04 Production of conjugated diolefins Expired GB863136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3110657A GB863136A (en) 1957-10-04 1957-10-04 Production of conjugated diolefins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3110657A GB863136A (en) 1957-10-04 1957-10-04 Production of conjugated diolefins

Publications (1)

Publication Number Publication Date
GB863136A true GB863136A (en) 1961-03-15

Family

ID=10318066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3110657A Expired GB863136A (en) 1957-10-04 1957-10-04 Production of conjugated diolefins

Country Status (1)

Country Link
GB (1) GB863136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215567A1 (en) * 1985-08-07 1987-03-25 Sumitomo Chemical Company, Limited Production of 2,5-dimethyl-2,4-hexadiene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0215567A1 (en) * 1985-08-07 1987-03-25 Sumitomo Chemical Company, Limited Production of 2,5-dimethyl-2,4-hexadiene

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