GB291748A - Manufacture of divinyl and homologues thereof - Google Patents

Manufacture of divinyl and homologues thereof

Info

Publication number
GB291748A
GB291748A GB16584/28A GB1658428A GB291748A GB 291748 A GB291748 A GB 291748A GB 16584/28 A GB16584/28 A GB 16584/28A GB 1658428 A GB1658428 A GB 1658428A GB 291748 A GB291748 A GB 291748A
Authority
GB
United Kingdom
Prior art keywords
alums
vapour
butadiene
potash
butylene glycol
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
GB16584/28A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB291748A publication Critical patent/GB291748A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
    • 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
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/053—Sulfates or other compounds comprising the anion (SnO3n+1)2-

Landscapes

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

Abstract

291,748. I. G. Farbenindustrie Akt.- Ges. June 7, 1927, [Convention date]. Butadiene and its homologues are obtained by passing the vapour of 1 : 3-butylene glycol or a homologue thereof, preferably mixed with a diluting gas or vapour such as steam, over dehydrated alum at a raised temperature. In an example, butylene glycol containing 20 per cent of water is vaporized and passed through a tube heated to 240-250‹ C. and containing potash dehydrated at 150-180‹ C. A small quantity of oily intermediate products (allyl carbinol and other unsaturated alcohols and ethers thereof) are separated and may be again passed over the catalyst to produce more butadiene, and the hydrocarbon is liquefied by strong cooling or pressure. In a similar manner a-a-dimethylbutadiene may be prepared from 2-methylpentandiol-1-2 : 4. German Specification 261,642 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that ammonium alum or a mixture of alums may be used instead of potash alums. This subject-matter does not appear in the Specification as accepted.
GB16584/28A 1927-06-07 1928-06-07 Manufacture of divinyl and homologues thereof Expired GB291748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE291748X 1927-06-07

Publications (1)

Publication Number Publication Date
GB291748A true GB291748A (en) 1929-08-29

Family

ID=6069626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16584/28A Expired GB291748A (en) 1927-06-07 1928-06-07 Manufacture of divinyl and homologues thereof

Country Status (1)

Country Link
GB (1) GB291748A (en)

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