GB486094A - Improvements in the manufacture and production of butadiene - Google Patents

Improvements in the manufacture and production of butadiene

Info

Publication number
GB486094A
GB486094A GB3276536A GB3276536A GB486094A GB 486094 A GB486094 A GB 486094A GB 3276536 A GB3276536 A GB 3276536A GB 3276536 A GB3276536 A GB 3276536A GB 486094 A GB486094 A GB 486094A
Authority
GB
United Kingdom
Prior art keywords
butadiene
acid
reduction
solutions
vinyl acetylene
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
GB3276536A
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
Priority to GB3276536A priority Critical patent/GB486094A/en
Publication of GB486094A publication Critical patent/GB486094A/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
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/08—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds
    • C07C5/09—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of carbon-to-carbon triple bonds to carbon-to-carbon double bonds

Landscapes

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

Abstract

Butadiene is made by reduction of vinyl acetylene with solutions of compounds of divalent chromium. Weakly acid, neutral or ammoniacal solutions may be employed. Normal or slightly increased temperature may be used, and atmospheric or increased pressure. The chromic compounds formed may be reduced, e.g. by electrolysis or zinc and acid, and re-used. This reduction may be effected in the reaction mixture. In examples, aqueous solutions containing chromic sulphate and excess sulphuric acid are electrolytically reduced and treated with vinyl acetylene in a cycle or until a saturated solution is obtained which is allowed to stand at 25 DEG C., gas containing butadiene commencing to escape after a short time and further gas after reducing the pressure.
GB3276536A 1936-11-30 1936-11-30 Improvements in the manufacture and production of butadiene Expired GB486094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3276536A GB486094A (en) 1936-11-30 1936-11-30 Improvements in the manufacture and production of butadiene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3276536A GB486094A (en) 1936-11-30 1936-11-30 Improvements in the manufacture and production of butadiene

Publications (1)

Publication Number Publication Date
GB486094A true GB486094A (en) 1938-05-30

Family

ID=10343663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3276536A Expired GB486094A (en) 1936-11-30 1936-11-30 Improvements in the manufacture and production of butadiene

Country Status (1)

Country Link
GB (1) GB486094A (en)

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