Cobalt-catalyzed oxidation of C.sub.3 to C.sub.7 saturated aliph

Details Cobalt-catalyzed oxidation of C.sub.3 to C.sub.7 saturated aliph Cobalt-catalyzed oxidation of C.sub.3 to C.sub.7 saturated aliph

1976-12-29

1978-12-26

Garner, Vivian

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

203 71, 203 99, 203DIG11, 260597R, 560248, 568910, 562549, C07C 4502, C07C 5120, C07C 6700

Patent

active

041317416

ABSTRACT:
In a process for the production of oxygenated organic compounds including a substantial proportion of acetic acid by oxidizing a C.sub.3 to C.sub.7 saturated aliphatic hydrocarbon in the liquid phase with molecular oxygen in the presence of an inert reaction medium and a cobalt catalyst, between 5 and 90% in a continuous reaction and 11 and 90% in a batch reaction of the cobalt being introduced in the +3 oxidation state, the improvement comprising separating the catalyst solution fraction from the fraction comprising oxygen-containing compounds and water by distillation while limiting the residence time of the catalyst solution fraction in the distillation zone so that it is the minimum consistent with substantially complete separation of the fractions thereby minimizing the reduction of Co.sup.+3 to Co.sup.+2.

REFERENCES:
patent: 3923882 (1975-12-01), Kiff
patent: 4032570 (1977-06-01), Schulz et al.

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