C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/583.3, 260/6
C07C 35/08 (2006.01) C07C 49/403 (2006.01) C07C 51/31 (2006.01)
Patent
CA 1055050
ABSTRACT The process of oxidizing cyclohexane to produce cyclo- hexanone and cyclohexanol in the weight ratio of 0.5 to 1.5 of cyclohexanone to cyclohexanol. said process comprising con- tacting a stream of liquid cyclohexane with oxygen in each of at least three successive oxidation stages by introducing into each stage a mixture of gases comprising molecular oxygen and inert gas, said oxygen being introduced in amounts that may range from an amount that will substantially all react with the cyclohexane under the particular conditions involved to an amount in excess of the amount required to react with the cyclohexane, said excess being such that the overall oxygen consumed in the oxidation zone is not more than 95 mole percent of the amount fed under the particular conditions in- volved, in the presence of a binary catalyst system comprising 0.02 to 0.9 parts per million (ppm) chromium and 0.1 to 5 ppm cobalt at a temperature of from 130 to 200°C. and a pressure of from 60 to 350 psig, (4.22 to 24.6 kg./cm2. gauge) reacting any cyclohexylhydroperoxide that may be formed in the presence of said binary catalyst system and recovering a product of cyclohexanone and cyclohexanol in the above ratio. - 1 -
224177
Barnette Willie J.
Schmitt Donald L.
White Jesse O.
E.i. Du Pont de Nemours And Company
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