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SE8105934L - PROCEDURE FOR PREPARING ISOSMORIC ACID ANHYDRIDE - Google Patents

PROCEDURE FOR PREPARING ISOSMORIC ACID ANHYDRIDE

Info

Publication number
SE8105934L
SE8105934L SE8105934A SE8105934A SE8105934L SE 8105934 L SE8105934 L SE 8105934L SE 8105934 A SE8105934 A SE 8105934A SE 8105934 A SE8105934 A SE 8105934A SE 8105934 L SE8105934 L SE 8105934L
Authority
SE
Sweden
Prior art keywords
recycle
iii
liq
isosmoric
preparing
Prior art date
Application number
SE8105934A
Other languages
Swedish (sv)
Other versions
SE448298B (en
Inventor
R V Norton
L R Zehner
R F Pascoe
Jr J E Corn
D Grote
Original Assignee
Ashland Oil Inc
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 Ashland Oil Inc filed Critical Ashland Oil Inc
Priority to SE8105934A priority Critical patent/SE448298B/en
Publication of SE8105934L publication Critical patent/SE8105934L/en
Publication of SE448298B publication Critical patent/SE448298B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54Preparation of carboxylic acid anhydrides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Prodn of isobutyric anhydride (I) is carried out by (a) carbonylating propylene in the presence of excess anhydrous liq HF; (b) fractionating the reaction mixt to separate isobutyryl fluoride (II) and recover unreacted HF for recycle; (c) hydrolysing (II) at 0-100 deg C in the presence of an HF acceptor (III) and 0.05-0.5 mole of water per mole of (II), the water being completely consumed in the reaction to form an equilibrium reaction mixt including a liq phase comprising (I) and (II) and a solid phase comprising an HF/(III)complex; and (d) fractionating the liq phase to give a prod fraction comprising (I) and an overhead fraction comprising (II) for recycle to step (c). The process avoids problems associated with the sepn of (I) from HF; recycle HF can be recovered from the HF/(III) complex.
SE8105934A 1981-10-07 1981-10-07 Isobutyric anhydride prodn. from propylene SE448298B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8105934A SE448298B (en) 1981-10-07 1981-10-07 Isobutyric anhydride prodn. from propylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8105934A SE448298B (en) 1981-10-07 1981-10-07 Isobutyric anhydride prodn. from propylene

Publications (2)

Publication Number Publication Date
SE8105934L true SE8105934L (en) 1983-04-08
SE448298B SE448298B (en) 1987-02-09

Family

ID=20344726

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8105934A SE448298B (en) 1981-10-07 1981-10-07 Isobutyric anhydride prodn. from propylene

Country Status (1)

Country Link
SE (1) SE448298B (en)

Also Published As

Publication number Publication date
SE448298B (en) 1987-02-09

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