GB1117031A - Method for the preparation of ortho vinyltoluene or related compounds - Google Patents

Method for the preparation of ortho vinyltoluene or related compounds

Info

Publication number
GB1117031A
GB1117031A GB1564866A GB1564866A GB1117031A GB 1117031 A GB1117031 A GB 1117031A GB 1564866 A GB1564866 A GB 1564866A GB 1564866 A GB1564866 A GB 1564866A GB 1117031 A GB1117031 A GB 1117031A
Authority
GB
United Kingdom
Prior art keywords
alumina
per cent
feedstock
catalyst
dimethyl
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
GB1564866A
Inventor
Frederick John Soderquist
James Lawrence Amos
Harold Darwin Boyce
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB1564866A priority Critical patent/GB1117031A/en
Publication of GB1117031A publication Critical patent/GB1117031A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3335—Catalytic processes with metals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3332—Catalytic processes with metal oxides or metal sulfides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3335—Catalytic processes with metals
    • C07C5/3337—Catalytic processes with metals of the platinum group

Landscapes

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

Abstract

Orthovinyltoluene is prepared from orthoethyltoluene, and similarly 2,3-, 2,4- or 2,5-dimethyl - 1 - vinylbenzene from 2,3-, 2,4- or 2,5-dimethyl-1-ethylbenzene, by a catalytic dehydrogenation in which ring isomerization is substantially inhibited wherein the vaporized heated feedstock mixed with a steam diluent is brought into contact with a dehydrogenation catalyst consisting of alumina, alumina promoted by platinum, chromic oxide, or iron oxide, or alumina-vanadium containing 0.5-10% by weight elemental vanadium, at 500-800 DEG C. and an hourly space velocity of 0.1-10 gms. feedstock per c.c. catalyst, the condensible effluent gases are recovered, and the dehydrogenated product is separated therefrom. The weight ratio steam diluent: feedstock may be 2:1 to 4:1. A promoted alumina catalyst may contain at least 0.1 wt. per cent Pt, 2-20 wt. per cent Cr, or 2-20 wt. per cent Fe.
GB1564866A 1966-04-07 1966-04-07 Method for the preparation of ortho vinyltoluene or related compounds Expired GB1117031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1564866A GB1117031A (en) 1966-04-07 1966-04-07 Method for the preparation of ortho vinyltoluene or related compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1564866A GB1117031A (en) 1966-04-07 1966-04-07 Method for the preparation of ortho vinyltoluene or related compounds

Publications (1)

Publication Number Publication Date
GB1117031A true GB1117031A (en) 1968-06-12

Family

ID=10062923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1564866A Expired GB1117031A (en) 1966-04-07 1966-04-07 Method for the preparation of ortho vinyltoluene or related compounds

Country Status (1)

Country Link
GB (1) GB1117031A (en)

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