Method for making isobutyric acid

Details Method for making isobutyric acid Method for making isobutyric acid

C - Chemistry, Metallurgy

07

C

260/495, 260/529

C07C 51/14 (2006.01) B01J 10/00 (2006.01) B01J 19/24 (2006.01) B01J 19/26 (2006.01) C07C 53/124 (2006.01) C07C 69/24 (2006.01)

Patent

CA 1319703

ABSTRACT OF THE DISCLOSURE A method for continuously reacting propylene and carbon monoxide in a hydrogen fluoride catalyst to produce, in the presence of water or an alcohol, isobutyric acid or an ester thereof, by introducing hydrogen fluoride, a liquid reagent, and a gaseous reagent into a first reaction chamber of a loop-type bubble column, conducting the low-density reaction mixture containing gas bubbles upwardly through a second reaction zone into a third reaction chamber wherein gas emerges from said reaction mixture to form a continuous gas phase and a more dense reaction mixture, and then conducting said continuous gas phase and more dense reaction mixture downwardly back to said first reaction chamber.

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