FIELD: technological processes.
SUBSTANCE: present invention relates to a method of producing cyclohexanol and/or cyclohexanone, which consists in oxidizing cyclohexane with an oxygen-containing gas in the presence of an imide catalyst at high temperature and pressure. Initially heating mixture of initial cyclohexane with catalyst to temperature of 155–170 °C, then air is supplied, mixture is held for 0.5–5 minutes, after which temperature is reduced to 115–150 °C, at which the process is carried out for 30–90 minutes, wherein catalyst used is compound of following formula (1), where R1, R2, R3, R4 – identical or different substitutes, for example, hydrogen, halogen, alkyl, hydroxyl, cycloalkyl, phenyl group (1), R1, R2, R3, R4=H (a); R2, R3, R4=H, R1=CH3 (b); R1, R3, R4=H, R2=CH3 (c); R2, R3, R4=H, R1=C6H5 (d); R1, R3, R4=H, R2=C6H5 (e); R2, R3, R4=H, R1=Cl (f); R1, R3, R4=H, R2=Cl (g); R2, R3, R4=H, R1=Br (h); R1, R3, R4=H, R2=Br (i); R2, R3, R1, R2, R3, R4=Cl (k); R1, R2, R3, R4=Br (I); R1, R3, R4=H, R2=NO2 (n).
EFFECT: disclosed method increases rate and selectivity of the process.
3 cl, 7 ex
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Authors
Dates
2019-05-21—Published
2018-04-02—Filed