GB852145A - Production of conjugated diolefines - Google Patents

Production of conjugated diolefines

Info

Publication number
GB852145A
GB852145A GB12415/58A GB1241558A GB852145A GB 852145 A GB852145 A GB 852145A GB 12415/58 A GB12415/58 A GB 12415/58A GB 1241558 A GB1241558 A GB 1241558A GB 852145 A GB852145 A GB 852145A
Authority
GB
United Kingdom
Prior art keywords
catalyst
liquid
benzene
reactor
silica
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
GB12415/58A
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 GB12415/58A priority Critical patent/GB852145A/en
Publication of GB852145A publication Critical patent/GB852145A/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
    • C07C2/86Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
    • C07C2/862Preparation 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
    • C07C2/867Preparation 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/12Silica and alumina
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/16Clays or other mineral silicates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/584Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

In the production of conjugated diolefines by the catalytic reaction of a lower monoolefine having up to six carbon atoms with formaldehyde or acetaldehyde at elevated temperature in the vapour phase in the presence of a surface active clay catalyst or a synthetic petroleum cracking catalyst, the catalyst is periodically reactivated by contact with an organic liquid. The catalyst may be a surface active clay, e.g. montmorillonite or fullers' earth as described in Specification 826,545 or a synthetic petroleum cracking catalyst, e.g. silica-alumina as described in Specification 826,546. They are extracted with the organic liquid in the reactor or removed from the reactor at up to the boiling point of the liquid or higher temperatures and raised pressure. Suitable liquids are benzene, toluene, acetone, methylethylketone, propylene and butylene liquid polymers and copolymers, naphthenic hydrocarbons and gasoline and petroleum fractions. An example illustrates the extraction in a soxhlet extractor of a silica-alumina catalyst with benzene.
GB12415/58A 1958-04-18 1958-04-18 Production of conjugated diolefines Expired GB852145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12415/58A GB852145A (en) 1958-04-18 1958-04-18 Production of conjugated diolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12415/58A GB852145A (en) 1958-04-18 1958-04-18 Production of conjugated diolefines

Publications (1)

Publication Number Publication Date
GB852145A true GB852145A (en) 1960-10-26

Family

ID=10004179

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12415/58A Expired GB852145A (en) 1958-04-18 1958-04-18 Production of conjugated diolefines

Country Status (1)

Country Link
GB (1) GB852145A (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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