Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1980-04-25
1981-12-01
Trousof, Natalie
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260544A, C07C 5154
Patent
active
043035949
ABSTRACT:
A process for the production of isobutyric acid anhydride in which propylene is initially carbonylated in the presence of a substantial molar excess of liquid anhydrous hydrogen fluoride to provide a reaction mixture of isobutyroyl fluoride and unreacted hydrogen fluoride. Following distillation of the reaction mixture to recover a recycle stream of hydrogen fluoride, the isobutyroyl fluoride residue is partially hydrolyzed in the presence of a hydrogen fluoride acceptor resulting in a hydrolysis product consisting essentially of isobutyroyl fluoride, isobutyric acid anhydride and a hydrogen fluoride complex of said acceptor. Following removal of the solid complex, the hydrolysis product is fractionally distilled to yield an overhead fraction of isobutyroyl fluoride for reuse in the hydrolysis reaction.
REFERENCES:
patent: 2053233 (1936-09-01), Woodhouse
Komatsu et al., Bull. Jap. Pet. Inst., 16, 124-131 (1974).
Friedman et al., J. Org. Chem. 1961, vol. 26, pp. 3751-3754.
Corn, Jr. John E.
Grote Dace
Norton Richard V.
Pascoe Ralph F.
Zehner Lee R.
Ashland Oil Inc.
Kammerer William
Pepper Frederick W.
Trousof Natalie
LandOfFree
Process for the production of isobutyric acid anhydride does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the production of isobutyric acid anhydride, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of isobutyric acid anhydride will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1296520